diff --git a/app/Filament/Resources/SmrAreaResource.php b/app/Filament/Resources/SmrAreaResource.php
new file mode 100644
index 000000000..b4cd949a1
--- /dev/null
+++ b/app/Filament/Resources/SmrAreaResource.php
@@ -0,0 +1,119 @@
+<?php
+
+namespace App\Filament\Resources;
+
+use App\Filament\Helpers\HasCoordinates;
+use App\Filament\Helpers\SelectOptions;
+use App\Filament\Resources\SmrAreaResource\Pages;
+use App\Models\SmrArea;
+use Filament\Forms\Components\Select;
+use Filament\Forms\Components\Textarea;
+use Filament\Forms\Components\TextInput;
+use Filament\Forms\Components\DateTimePicker;
+use Filament\Forms\Form;
+use Filament\Resources\Resource;
+use Filament\Tables\Table;
+use Filament\Tables;
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Support\Facades\App;
+
+class SmrAreaResource extends Resource
+{
+    use TranslatesStrings;
+    use HasCoordinates;
+
+    protected static ?string $model = SmrArea::class;
+    protected static ?string $modelLabel = 'SMR Area';
+    protected static ?string $navigationGroup = 'Airfield';
+    protected static ?string $navigationIcon = 'heroicon-o-exclamation-triangle';
+    protected static ?string $navigationLabel = 'SMR Areas';
+    protected static ?string $pluralModelLabel = 'SMR Areas';
+
+    public static function form(Form $form): Form
+    {
+        return $form
+            ->schema([
+                Select::make('airfield_id')
+                    ->label(self::translateFormPath('airfield.label'))
+                    ->helperText(self::translateFormPath('airfield.helper'))
+                    ->options(SelectOptions::airfields())
+                    ->searchable(!App::runningUnitTests())
+                    ->required(),
+                TextInput::make('name')
+                    ->label(self::translateFormPath('name.label'))
+                    ->helperText(self::translateFormPath('name.helper'))
+                    ->minLength(1)
+                    ->maxLength(255),
+                TextInput::make('source')
+                    ->label(self::translateFormPath('source.label'))
+                    ->helperText(self::translateFormPath('source.helper'))
+                    ->minLength(1)
+                    ->maxLength(255),
+                Textarea::make('coordinates')
+                    ->label(self::translateFormPath('coordinates.label'))
+                    ->helperText(self::translateFormPath('coordinates.helper'))
+                    ->rows(5)
+                    ->required()
+                    // relatively lax validation; a stricter pattern is somewhat unnecessary
+                    ->regex('/^(COORD(:[NESW][\d\.]{13}){2}\n*){3,}$/'),
+                DateTimePicker::make('start_date')
+                    ->label(self::translateFormPath('start_date.label'))
+                    ->helperText(self::translateFormPath('start_date.helper')),
+                DateTimePicker::make('end_date')
+                    ->label(self::translateFormPath('end_date.label'))
+                    ->helperText(self::translateFormPath('end_date.helper'))
+                    ->after('start_date'),
+            ]);
+    }
+
+    public static function table(Table $table): Table
+    {
+        return $table
+            ->columns([
+                Tables\Columns\TextColumn::make('airfield.code')
+                    ->label(self::translateTablePath('columns.airfield'))
+                    ->searchable()
+                    ->sortable(),
+                Tables\Columns\TextColumn::make('name')
+                    ->label(self::translateTablePath('columns.name'))
+                    ->searchable(),
+                Tables\Columns\TextColumn::make('source')
+                    ->label(self::translateTablePath('columns.source'))
+                    ->searchable(),
+            ])
+            ->actions([
+                Tables\Actions\EditAction::make(),
+                Tables\Actions\DeleteAction::make(),
+            ])
+            ->filters([
+                Tables\Filters\Filter::make('expired')
+                    ->toggle()
+                    ->label(self::translateFilterPath('expired'))
+                    ->query(fn (Builder $query) => $query->expired()),
+                Tables\Filters\TernaryFilter::make('activation')
+                    ->label(self::translateFilterPath('activation.label'))
+                    ->trueLabel(self::translateFilterPath('activation.true'))
+                    ->falseLabel(self::translateFilterPath('activation.false'))
+                    ->queries(
+                        true:  fn (Builder $query) => $query->active(),
+                        false: fn (Builder $query) => $query->whereNot->active(),
+                        blank: fn (Builder $query) => $query,
+                    ),
+            ]);
+    }
+
+    public static function getPages(): array
+    {
+        return [
+            'index' => Pages\ListSmrAreas::route('/'),
+            'create' => Pages\CreateSmrArea::route('/create'),
+            'view' => Pages\ViewSmrArea::route('/{record}'),
+            'edit' => Pages\EditSmrArea::route('/{record}/edit'),
+        ];
+    }
+
+    protected static function translationPathRoot(): string
+    {
+        return 'smr_areas';
+    }
+}
diff --git a/app/Filament/Resources/SmrAreaResource/Pages/CreateSmrArea.php b/app/Filament/Resources/SmrAreaResource/Pages/CreateSmrArea.php
new file mode 100644
index 000000000..1e1033dc4
--- /dev/null
+++ b/app/Filament/Resources/SmrAreaResource/Pages/CreateSmrArea.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace App\Filament\Resources\SmrAreaResource\Pages;
+
+use App\Filament\Resources\SmrAreaResource;
+use Filament\Resources\Pages\CreateRecord;
+
+class CreateSmrArea extends CreateRecord
+{
+    protected static string $resource = SmrAreaResource::class;
+}
diff --git a/app/Filament/Resources/SmrAreaResource/Pages/EditSmrArea.php b/app/Filament/Resources/SmrAreaResource/Pages/EditSmrArea.php
new file mode 100644
index 000000000..19847a510
--- /dev/null
+++ b/app/Filament/Resources/SmrAreaResource/Pages/EditSmrArea.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Filament\Resources\SmrAreaResource\Pages;
+
+use App\Filament\Resources\SmrAreaResource;
+use Filament\Pages\Actions;
+use Filament\Resources\Pages\EditRecord;
+
+class EditSmrArea extends EditRecord
+{
+    protected static string $resource = SmrAreaResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            Actions\DeleteAction::make(),
+        ];
+    }
+}
diff --git a/app/Filament/Resources/SmrAreaResource/Pages/ListSmrAreas.php b/app/Filament/Resources/SmrAreaResource/Pages/ListSmrAreas.php
new file mode 100644
index 000000000..44a38e380
--- /dev/null
+++ b/app/Filament/Resources/SmrAreaResource/Pages/ListSmrAreas.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Filament\Resources\SmrAreaResource\Pages;
+
+use App\Filament\Resources\Pages\LimitsTableRecordListingOptions;
+use App\Filament\Resources\SmrAreaResource;
+use Filament\Pages\Actions;
+use Filament\Resources\Pages\ListRecords;
+
+class ListSmrAreas extends ListRecords
+{
+    use LimitsTableRecordListingOptions;
+    protected static string $resource = SmrAreaResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            Actions\CreateAction::make(),
+        ];
+    }
+}
diff --git a/app/Filament/Resources/SmrAreaResource/Pages/ViewSmrArea.php b/app/Filament/Resources/SmrAreaResource/Pages/ViewSmrArea.php
new file mode 100644
index 000000000..901bf8dcb
--- /dev/null
+++ b/app/Filament/Resources/SmrAreaResource/Pages/ViewSmrArea.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Filament\Resources\SmrAreaResource\Pages;
+
+use App\Filament\Resources\SmrAreaResource;
+use Filament\Pages\Actions;
+use Filament\Resources\Pages\ViewRecord;
+
+class ViewSmrArea extends ViewRecord
+{
+    protected static string $resource = SmrAreaResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            Actions\EditAction::make(),
+        ];
+    }
+}
diff --git a/app/Http/Controllers/SmrAreaController.php b/app/Http/Controllers/SmrAreaController.php
new file mode 100644
index 000000000..b52ed7da7
--- /dev/null
+++ b/app/Http/Controllers/SmrAreaController.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\SmrArea;
+use Illuminate\Http\Response;
+
+class SmrAreaController extends Controller
+{
+    public function getFormattedSmrAreas(): Response
+    {
+        return response(
+            // backwards-compatible format for vSMR: sline-format coordinates on
+            // each line, with polygons separated by at least one blank line
+            SmrArea::active()->pluck("coordinates")->join("\n\n"),
+            200,
+            ["Content-Type" => "text/plain"],
+        );
+    }
+}
diff --git a/app/Models/SmrArea.php b/app/Models/SmrArea.php
new file mode 100644
index 000000000..734fdfcbd
--- /dev/null
+++ b/app/Models/SmrArea.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace App\Models;
+
+use App\Models\Airfield\Airfield;
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class SmrArea extends Model
+{
+    public $table = 'smr_area';
+
+    protected $fillable = [
+        'airfield_id',
+        'name',
+        'source',
+        'coordinates',
+        'start_date',
+        'end_date',
+        'created_at',
+        'updated_at',
+    ];
+
+    protected $hidden = [
+        'created_at',
+        'updated_at',
+    ];
+
+    public function airfield(): BelongsTo
+    {
+        return $this->belongsTo(Airfield::class);
+    }
+
+    public function scopeActive(Builder $query): Builder
+    {
+        return $query
+            ->where(fn (Builder $query) => $query
+                ->where('start_date', '<', now())
+                ->orWhereNull('start_date'))
+            ->where(fn (Builder $query) => $query
+                ->where('end_date', '>', now())
+                ->orWhereNull('end_date'));
+    }
+
+    public function scopeExpired(Builder $query): Builder
+    {
+        return $query->where('end_date', '<', now());
+    }
+}
diff --git a/app/Providers/AuthServiceProvider.php b/app/Providers/AuthServiceProvider.php
index abce350c8..9b0d13485 100644
--- a/app/Providers/AuthServiceProvider.php
+++ b/app/Providers/AuthServiceProvider.php
@@ -19,6 +19,7 @@
 use App\Models\Plugin\PluginLog;
 use App\Models\Runway\Runway;
 use App\Models\Sid;
+use App\Models\SmrArea;
 use App\Models\Squawk\AirfieldPairing\AirfieldPairingSquawkRange;
 use App\Models\Squawk\Ccams\CcamsSquawkRange;
 use App\Models\Squawk\Orcam\OrcamSquawkRange;
@@ -79,6 +80,7 @@ class AuthServiceProvider extends ServiceProvider
         Prenote::class => DefaultFilamentPolicy::class,
         Runway::class => DefaultFilamentPolicy::class,
         Sid::class => DefaultFilamentPolicy::class,
+        SmrArea::class => OperationsContributorPolicy::class,
         Stand::class => OperationsContributorPolicy::class,
         Terminal::class => OperationsContributorPolicy::class,
         UnitConspicuitySquawkCode::class => DefaultFilamentPolicy::class,
diff --git a/database/migrations/2025_04_30_220010_create_smr_area_table.php b/database/migrations/2025_04_30_220010_create_smr_area_table.php
new file mode 100644
index 000000000..d61478011
--- /dev/null
+++ b/database/migrations/2025_04_30_220010_create_smr_area_table.php
@@ -0,0 +1,37 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('smr_area', function (Blueprint $table) {
+            $table->id()->primary();
+            $table->unsignedInteger('airfield_id');
+            $table->string('name')->nullable();
+            $table->string('source')->nullable();
+            $table->text('coordinates');
+            $table->dateTime('start_date')->nullable();
+            $table->dateTime('end_date')->nullable();
+            $table->timestamps();
+
+            $table->foreign('airfield_id')
+                ->references('id')
+                ->on('airfield')
+                ->cascadeOnDelete();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('smr_area');
+    }
+};
diff --git a/database/seeds/DatabaseSeeder.php b/database/seeds/DatabaseSeeder.php
index a87575614..d6977c070 100644
--- a/database/seeds/DatabaseSeeder.php
+++ b/database/seeds/DatabaseSeeder.php
@@ -150,6 +150,9 @@ class DatabaseSeeder extends Seeder
         IntentionCodeSeeder::class => [
             'intention_codes',
         ],
+        SmrAreaSeeder::class => [
+            'smr_area',
+        ],
     ];
 
     const OTHER_TABLES_TO_TRUNCATE = [
diff --git a/database/seeds/SmrAreaSeeder.php b/database/seeds/SmrAreaSeeder.php
new file mode 100644
index 000000000..49a9a0803
--- /dev/null
+++ b/database/seeds/SmrAreaSeeder.php
@@ -0,0 +1,20 @@
+<?php
+
+use App\Models\SmrArea;
+use Illuminate\Database\Seeder;
+
+class SmrAreaSeeder extends Seeder
+{
+    /**
+     * Run the database seeds.
+     */
+    public function run(): void
+    {
+        SmrArea::create([
+            'airfield_id' => 1,
+            'coordinates' => str_repeat("COORD:N000.00.00.000:E000.00.00.000\n", 3),
+            'start_date'  => null,
+            'end_date'    => null,
+        ]);
+    }
+}
diff --git a/lang/en/filter.php b/lang/en/filter.php
index 87771a5a7..00a3cfa22 100644
--- a/lang/en/filter.php
+++ b/lang/en/filter.php
@@ -4,5 +4,6 @@
     'notifications' => require_once __DIR__ . '/notifications/filter.php',
     'runways' => require_once __DIR__ . '/runways/filter.php',
     'sids' => require_once __DIR__ . '/sids/filter.php',
+    'smr_areas' => require_once __DIR__ . '/smr_areas/filter.php',
     'stands' => require_once __DIR__ . '/stands/filter.php',
 ];
diff --git a/lang/en/form.php b/lang/en/form.php
index 914351695..a10487c96 100644
--- a/lang/en/form.php
+++ b/lang/en/form.php
@@ -4,20 +4,21 @@
     'aircraft' => require_once __DIR__ . '/aircraft/form.php',
     'airfields' => require_once __DIR__ . '/airfields/form.php',
     'airlines' => require_once __DIR__ . '/airlines/form.php',
+    'controllers' => require_once __DIR__ . '/controllers/form.php',
     'fir_exit_points' => require_once __DIR__ . '/fir_exit_points/form.php',
-    'intention' => require_once __DIR__ . '/intention/form.php',
-    'stands' => require_once __DIR__ . '/stands/form.php',
-    'users' => require_once __DIR__ . '/users/form.php',
-    'sids' => require_once __DIR__ . '/sids/form.php',
     'handoffs' => require_once __DIR__ . '/handoffs/form.php',
     'holds' => require_once __DIR__ . '/holds/form.php',
+    'intention' => require_once __DIR__ . '/intention/form.php',
+    'navaids' => require_once __DIR__ . '/navaids/form.php',
+    'notifications' => require_once __DIR__ . '/notifications/form.php',
     'plugin' => require_once __DIR__ . '/plugin/form.php',
     'prenotes' => require_once __DIR__ . '/prenotes/form.php',
     'runways' => require_once __DIR__ . '/runways/form.php',
-    'controllers' => require_once __DIR__ . '/controllers/form.php',
-    'navaids' => require_once __DIR__ . '/navaids/form.php',
-    'notifications' => require_once __DIR__ . '/notifications/form.php',
+    'sids' => require_once __DIR__ . '/sids/form.php',
+    'smr_areas' => require_once __DIR__ . '/smr_areas/form.php',
     'squawks' => require_once __DIR__ . '/squawks/form.php',
     'srd' => require_once __DIR__ . '/srd/form.php',
+    'stands' => require_once __DIR__ . '/stands/form.php',
     'terminals' => require_once __DIR__ . '/terminals/form.php',
+    'users' => require_once __DIR__ . '/users/form.php',
 ];
diff --git a/lang/en/smr_areas/filter.php b/lang/en/smr_areas/filter.php
new file mode 100644
index 000000000..530d6d71d
--- /dev/null
+++ b/lang/en/smr_areas/filter.php
@@ -0,0 +1,10 @@
+<?php
+
+return [
+    'activation' => [
+        'label' => 'Activation',
+        'true' => 'Active',
+        'false' => 'Inactive',
+    ],
+    'expired' => 'Expired',
+];
diff --git a/lang/en/smr_areas/form.php b/lang/en/smr_areas/form.php
new file mode 100644
index 000000000..32c337e74
--- /dev/null
+++ b/lang/en/smr_areas/form.php
@@ -0,0 +1,28 @@
+<?php
+
+return [
+    'airfield' => [
+        'label' => 'Airfield',
+        'helper' => 'The airfield with which this area is associated.',
+    ],
+    'name' => [
+        'label' => 'Description',
+        'helper' => 'A short description of what the area covers.',
+    ],
+    'source' => [
+        'label' => 'Source',
+        'helper' => 'The information source for this area (ID of relevant NOTAM, AIP SUP, etc.).',
+    ],
+    'coordinates' => [
+        'label' => 'Coordinates',
+        'helper' => 'The polygon defining this area, in "sline" format. Separate distinct polygons with blank lines.',
+    ],
+    'start_date' => [
+        'label' => 'Start date',
+        'helper' => 'The time from which the area should be displayed. If blank, the area will be active immediately.',
+    ],
+    'end_date' => [
+        'label' => 'End date',
+        'helper' => 'The time until which the area should be displayed. If blank, the area will be active indefinitely.',
+    ],
+];
diff --git a/lang/en/smr_areas/table.php b/lang/en/smr_areas/table.php
new file mode 100644
index 000000000..8ab1b4161
--- /dev/null
+++ b/lang/en/smr_areas/table.php
@@ -0,0 +1,9 @@
+<?php
+
+return [
+    'columns' => [
+        'airfield' => 'Airfield',
+        'name' => 'Description',
+        'source' => 'Source',
+    ],
+];
diff --git a/lang/en/table.php b/lang/en/table.php
index a622af1b8..ab1814306 100644
--- a/lang/en/table.php
+++ b/lang/en/table.php
@@ -4,23 +4,24 @@
     'aircraft' => require_once __DIR__ . '/aircraft/table.php',
     'airfields' => require_once __DIR__ . '/airfields/table.php',
     'airlines' => require_once __DIR__ . '/airlines/table.php',
+    'controllers' => require_once __DIR__ . '/controllers/table.php',
     'dependencies' => require_once __DIR__ . '/dependencies/table.php',
     'fir_exit_points' => require_once __DIR__ . '/fir_exit_points/table.php',
-    'intention' => require_once __DIR__ . '/intention/table.php',
-    'stands' => require_once __DIR__ . '/stands/table.php',
-    'stand_assignments_history' => require_once __DIR__ . '/stand_assignments_history/table.php',
-    'users' => require_once __DIR__ . '/users/table.php',
-    'sids' => require_once __DIR__ . '/sids/table.php',
     'handoffs' => require_once __DIR__ . '/handoffs/table.php',
     'holds' => require_once __DIR__ . '/holds/table.php',
-    'plugin' => require_once __DIR__ . '/plugin/table.php',
-    'prenotes' => require_once __DIR__ . '/prenotes/table.php',
-    'controllers' => require_once __DIR__ . '/controllers/table.php',
+    'intention' => require_once __DIR__ . '/intention/table.php',
     'navaids' => require_once __DIR__ . '/navaids/table.php',
     'notifications' => require_once __DIR__ . '/notifications/table.php',
+    'plugin' => require_once __DIR__ . '/plugin/table.php',
+    'prenotes' => require_once __DIR__ . '/prenotes/table.php',
     'runways' => require_once __DIR__ . '/runways/table.php',
+    'sids' => require_once __DIR__ . '/sids/table.php',
+    'smr_areas' => require_once __DIR__ . '/smr_areas/table.php',
     'squawks' => require_once __DIR__ . '/squawks/table.php',
     'srd' => require_once __DIR__ . '/srd/table.php',
+    'stand_assignments_history' => require_once __DIR__ . '/stand_assignments_history/table.php',
+    'stands' => require_once __DIR__ . '/stands/table.php',
     'terminals' => require_once __DIR__ . '/terminals/table.php',
+    'users' => require_once __DIR__ . '/users/table.php',
     'versions' => require_once __DIR__ . '/versions/table.php',
 ];
diff --git a/routes/api.php b/routes/api.php
index cd4dc44cd..04023bcde 100644
--- a/routes/api.php
+++ b/routes/api.php
@@ -303,6 +303,8 @@ function () {
                         // Enroute releases
                         Route::get('release/enroute/types', 'ReleaseController@enrouteReleaseTypeDependency');
 
+                        Route::get("smr-areas", "SmrAreaController@getFormattedSmrAreas");
+
                         // Sids
                         Route::get('sid/dependency', 'SidController@getSidsDependency');
 
diff --git a/tests/app/Filament/SmrAreaResourceTest.php b/tests/app/Filament/SmrAreaResourceTest.php
new file mode 100644
index 000000000..70a870648
--- /dev/null
+++ b/tests/app/Filament/SmrAreaResourceTest.php
@@ -0,0 +1,197 @@
+<?php
+
+namespace App\Filament;
+
+use App\BaseFilamentTestCase;
+use App\Filament\Resources\SmrAreaResource;
+use App\Filament\Resources\SmrAreaResource\Pages\CreateSmrArea;
+use App\Filament\Resources\SmrAreaResource\Pages\EditSmrArea;
+use App\Filament\Resources\SmrAreaResource\Pages\ListSmrAreas;
+use App\Filament\Resources\SmrAreaResource\Pages\ViewSmrArea;
+use App\Models\SmrArea;
+use Illuminate\Database\Eloquent\Model;
+use Livewire\Livewire;
+
+class SmrAreaResourceTest extends BaseFilamentTestCase
+{
+    use ChecksOperationsContributorActionVisibility;
+    use ChecksOperationsContributorAccess;
+
+    private const TEST_COORDINATE = "COORD:N000.00.00.000:E000.00.00.000\n";
+
+    public function testItLoadsDataForView()
+    {
+        Livewire::test(ViewSmrArea::class, ['record' => 1])
+            ->assertSet('data.airfield_id', 1);
+    }
+
+    public function testItCreatesAnArea()
+    {
+        Livewire::test(CreateSmrArea::class)
+            ->set('data.airfield_id', 2)
+            ->set('data.coordinates', str_repeat($this::TEST_COORDINATE, 3))
+            ->call('create')
+            ->assertHasNoErrors();
+
+        $this->assertDatabaseHas('smr_area', ['airfield_id' => 2]);
+    }
+
+    public function testItDoesntCreateAnAreaNoAirfieldId()
+    {
+        Livewire::test(CreateSmrArea::class)
+            ->set('data.coordinates', str_repeat($this::TEST_COORDINATE, 3))
+            ->call('create')
+            ->assertHasErrors(['data.airfield_id']);
+    }
+
+    public function testItDoesntCreateAnAreaNoCoordinates()
+    {
+        Livewire::test(CreateSmrArea::class)
+            ->set('data.airfield_id', 1)
+            ->call('create')
+            ->assertHasErrors(['data.coordinates']);
+    }
+
+    public function testItDoesntCreateAnAreaTooFewCoordinates()
+    {
+        Livewire::test(CreateSmrArea::class)
+            ->set('data.airfield_id', 1)
+            ->set('data.coordinates', $this::TEST_COORDINATE)
+            ->call('create')
+            ->assertHasErrors(['data.coordinates']);
+    }
+
+    public function testItDoesntCreateAnAreaInvalidCoordinates()
+    {
+        Livewire::test(CreateSmrArea::class)
+            ->set('data.airfield_id', 1)
+            ->set('data.coordinates', str_repeat("COORD:INVALID\n", 3))
+            ->call('create')
+            ->assertHasErrors(['data.coordinates']);
+    }
+
+    public function testItLoadsDataForEdit()
+    {
+        Livewire::test(EditSmrArea::class, ['record' => 1])
+            ->assertSet('data.airfield_id', 1);
+    }
+
+    public function testItEditsAnArea()
+    {
+        Livewire::test(EditSmrArea::class, ['record' => 1])
+            ->set('data.airfield_id', 3)
+            ->set('data.source', 'Some source')
+            ->call('save')
+            ->assertHasNoErrors();
+
+        $this->assertDatabaseHas(
+            'smr_area',
+            [
+                'id' => 1,
+                'airfield_id' => 3,
+                'source' => 'Some source',
+            ]
+        );
+    }
+
+    public function testItDoesntEditAnAreaNoAirfieldId()
+    {
+        Livewire::test(EditSmrArea::class, ['record' => 1])
+            ->set('data.airfield_id')
+            ->set('data.coordinates', str_repeat($this::TEST_COORDINATE, 3))
+            ->call('save')
+            ->assertHasErrors(['data.airfield_id']);
+    }
+
+    public function testItDoesntEditAnAreaNoCoordinates()
+    {
+        Livewire::test(EditSmrArea::class, ['record' => 1])
+            ->set('data.airfield_id', 1)
+            ->set('data.coordinates')
+            ->call('save')
+            ->assertHasErrors(['data.coordinates']);
+    }
+
+    public function testItDoesntEditAnAreaTooFewCoordinates()
+    {
+        Livewire::test(EditSmrArea::class, ['record' => 1])
+            ->set('data.airfield_id', 1)
+            ->set('data.coordinates', $this::TEST_COORDINATE)
+            ->call('save')
+            ->assertHasErrors(['data.coordinates']);
+    }
+
+    public function testItDoesntEditAnAreaInvalidCoordinates()
+    {
+        Livewire::test(EditSmrArea::class, ['record' => 1])
+            ->set('data.airfield_id', 1)
+            ->set('data.coordinates', str_repeat("COORD:INVALID\n", 3))
+            ->call('save')
+            ->assertHasErrors(['data.coordinates']);
+    }
+
+    protected function getCreateText(): string
+    {
+        return 'Create SMR Area';
+    }
+
+    protected function getEditRecord(): Model
+    {
+        return SmrArea::findOrFail(1);
+    }
+
+    protected function getEditText(): string
+    {
+        return 'Edit SMR Area';
+    }
+
+    protected function getIndexText(): array
+    {
+        return ['SMR Areas'];
+    }
+
+    protected function getViewText(): string
+    {
+        return 'View SMR Area';
+    }
+
+    protected function getViewRecord(): Model
+    {
+        return $this->getEditRecord();
+    }
+
+    protected static function resourceClass(): string
+    {
+        return SmrAreaResource::class;
+    }
+
+    protected static function resourceRecordClass(): string
+    {
+        return SmrArea::class;
+    }
+
+    protected static function resourceId(): int|string
+    {
+        return 1;
+    }
+
+    protected static function writeResourcePageActions(): array
+    {
+        return [
+            'create',
+        ];
+    }
+
+    protected static function resourceListingClass(): string
+    {
+        return ListSmrAreas::class;
+    }
+
+    protected static function writeResourceTableActions(): array
+    {
+        return [
+            'edit',
+            'delete',
+        ];
+    }
+}
diff --git a/tests/app/Http/Controllers/SmrAreaControllerTest.php b/tests/app/Http/Controllers/SmrAreaControllerTest.php
new file mode 100644
index 000000000..bd7d660f7
--- /dev/null
+++ b/tests/app/Http/Controllers/SmrAreaControllerTest.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\BaseApiTestCase;
+use App\Models\SmrArea;
+use Carbon\Carbon;
+
+class SmrAreaControllerTest extends BaseApiTestCase
+{
+    public function testItReturnsFormattedActiveAreas()
+    {
+        SmrArea::create([
+            'airfield_id' => 1,
+            'coordinates' => 'COORD:ACTIVE:AREA1',
+            'start_date'  => null,
+            'end_date'    => null,
+        ]);
+        SmrArea::create([
+            'airfield_id' => 1,
+            'coordinates' => 'COORD:ACTIVE:AREA2',
+            'start_date'  => Carbon::now()->subDay(),
+            'end_date'    => Carbon::now()->addDay(),
+        ]);
+        SmrArea::create([
+            'airfield_id' => 1,
+            'coordinates' => 'COORD:INACTIVE:AREA',
+            'start_date'  => null,
+            'end_date'    => Carbon::now()->subDay(),
+        ]);
+
+        $this->makeUnauthenticatedApiRequest(self::METHOD_GET, 'smr-areas')
+            ->assertOk()
+            ->assertSeeText('COORD:ACTIVE:AREA1')
+            ->assertSeeText('COORD:ACTIVE:AREA2')
+            ->assertDontSeeText('INACTIVE')
+            ->assertDontSeeText("1\nCOORD")
+            ->assertDontSeeText('1COORD')
+            ->assertDontSeeText("2\nCOORD")
+            ->assertDontSeeText('2COORD');
+    }
+}
diff --git a/tests/app/Models/SmrAreaTest.php b/tests/app/Models/SmrAreaTest.php
new file mode 100644
index 000000000..96edbb79d
--- /dev/null
+++ b/tests/app/Models/SmrAreaTest.php
@@ -0,0 +1,72 @@
+<?php
+
+namespace Tests\Feature\app\Models;
+
+use App\BaseFunctionalTestCase;
+use App\Models\SmrArea;
+use Carbon\Carbon;
+use Illuminate\Database\Eloquent\Builder;
+
+class SmrAreaTest extends BaseFunctionalTestCase
+{
+    private function createTestSmrArea(): SmrArea
+    {
+        return SmrArea::create([
+            'airfield_id' => 1,
+            'coordinates' => '',
+            'start_date'  => null,
+            'end_date'    => null,
+        ]);
+    }
+
+    private function checkCases(Builder $query, array $cases)
+    {
+        $area = $this->createTestSmrArea();
+        foreach ($cases as [$stt, $end, $expected]) {
+            $area->start_date = $stt ? Carbon::now()->addDays($stt) : null;
+            $area->end_date   = $end ? Carbon::now()->addDays($end) : null;
+            $area->save();
+
+            $this->assertEquals(
+                $expected, $query->get()->contains($area),
+                sprintf("expected [%d, %d] -> %d", $stt, $end, $expected),
+            );
+        }
+    }
+
+    public function testItFindsExpiredAreas()
+    {
+        $this->checkCases(SmrArea::expired(), [
+            [null, null, false],
+            [null,   -1, true],
+            [null,    2, false],
+            [  -2, null, false],
+            [  -2,   -1, true],
+            [  -2,    2, false],
+            [   1, null, false],
+            [   1,    2, false],
+        ]);
+    }
+
+    public function testItFindsActiveAreas()
+    {
+        $this->checkCases(SmrArea::active(), [
+            [null, null, true],
+            [null,   -1, false],
+            [null,    2, true],
+            [  -2, null, true],
+            [  -2,   -1, false],
+            [  -2,    2, true],
+            [   1, null, false],
+            [   1,    2, false],
+        ]);
+    }
+
+    public function testItIgnoresDeletedAreas()
+    {
+        $area = $this->createTestSmrArea();
+        $area->delete();
+        $this->assertFalse(SmrArea::active()->get()->contains($area));
+        $this->assertFalse(SmrArea::expired()->get()->contains($area));
+    }
+}