The module "EnvironmentIdentification" provides a public web block "EnvironmentLabel" and public actions to enable identifying the environment: EnvironmentIsDevelopment(), EnvironmentIsTesting(), EnvironmentIsAcceptance(), EnvironmentIsProduction(), and Environment_GetLabel().
You must configure the site property "EnvironmentType_Max3Chars" with a value: "DEV", "TST", "ACC", or "PRD". Any other value will be considered as "Unknown".