diff --git a/octopus-samples-instances/api-scripts/enforce-base-environments.ps1 b/octopus-samples-instances/api-scripts/enforce-base-environments.ps1
new file mode 100644
index 0000000..f44d74e
--- /dev/null
+++ b/octopus-samples-instances/api-scripts/enforce-base-environments.ps1
@@ -0,0 +1,109 @@
+param 
+(
+    $OctopusUrl,
+    $OctopusApiKey,
+    $EnvironmentsCsv
+)
+
+function Invoke-OctopusApi
+{
+    param
+    (
+        $octopusUrl,
+        $endPoint,
+        $spaceId,
+        $apiKey,
+        $method,
+        $item
+    )
+    
+    if ([string]::IsNullOrWhiteSpace($SpaceId))
+    {
+        $url = "$OctopusUrl/api/$EndPoint"
+    }
+    else
+    {
+        $url = "$OctopusUrl/api/$spaceId/$EndPoint"    
+    }  
+    
+    if ([string]::IsNullOrWhiteSpace($method))
+    {
+    	$method = "GET"
+    }
+
+    try
+    {
+        if ($null -eq $item)
+        {
+            Write-Verbose "No data to post or put, calling bog standard invoke-restmethod for $url"
+            return Invoke-RestMethod -Method $method -Uri $url -Headers @{"X-Octopus-ApiKey" = "$ApiKey" } -ContentType 'application/json; charset=utf-8' -TimeoutSec 60
+        }
+
+        $body = $item | ConvertTo-Json -Depth 10
+        Write-Verbose $body
+
+        Write-Verbose "Invoking $method $url"
+        return Invoke-RestMethod -Method $method -Uri $url -Headers @{"X-Octopus-ApiKey" = "$ApiKey" } -Body $body -ContentType 'application/json; charset=utf-8' -TimeoutSec 60
+    }
+    catch
+    {
+        Write-Host "There was an error making a $method call to $url.  All request information (JSON body specifically) are logged as verbose.  Please check that for more information." -ForegroundColor Red
+
+        if ($null -ne $_.Exception.Response)
+        {
+            if ($_.Exception.Response.StatusCode -eq 401)
+            {
+                Write-Host "Unauthorized error returned from $url, please verify API key and try again" -ForegroundColor Red
+            }
+            elseif ($_.ErrorDetails.Message)
+            {                
+                Write-Host -Message "Error calling $url StatusCode: $($_.Exception.Response) $($_.ErrorDetails.Message)" -ForegroundColor Red
+                Write-Host $_.Exception -ForegroundColor Red
+            }            
+            else 
+            {
+                Write-Host $_.Exception -ForegroundColor Red
+            }
+        }
+        else
+        {
+            Write-Host $_.Exception -ForegroundColor Red
+        }
+
+        Exit 1
+    }    
+}
+
+$spacesList = Invoke-OctopusApi -OctopusUrl $octopusUrl -endPoint "spaces?skip=0&take=1000" -spaceId $null -apiKey $OctopusApiKey -item $null -method "GET"
+$environmentsToCheckList = $EnvironmentsCsv
+foreach ($space in $spacesList.Items)
+{
+    $environmentsList = Invoke-OctopusApi -OctopusUrl $octopusUrl -endPoint "environments?skip=0&take=1000" -spaceId $space.Id -apiKey $OctopusApiKey -item $null -method "GET"
+
+    foreach ($environmentToCheck in $environmentsToCheckList)
+    {
+        $found = $false
+        foreach ($environment in $environmentsList)
+        {
+            Write-Verbose "Checking $($environment.Name) with $environmentToCheck"
+            if ($environment.Name.ToLower().Trim() -eq $environmentToCheck.ToLower().Trim())
+            {
+                Write-Host "Environment $environmentToCheck already exists on space $($space.Name)"
+                $found = $true
+                break
+            }
+        }
+
+        if ($found -eq $false)
+        {
+            $environmentToAdd = @{
+                Name = $environmentToCheck
+            }
+
+            $newEnvironment = Invoke-OctopusApi -OctopusUrl $octopusUrl -endPoint "environments" -spaceId $space.Id -apiKey $OctopusApiKey -item $environmentToAdd -method "POST"
+            Write-Host "Added the environment $environmentToCheck with the new id $($newEnvironment.Id)"
+        }
+    }
+}
+
+Write-Host "Finished checking environments for all spaces"
\ No newline at end of file