Part of lp.blueprints
| Class | SpecificationImplementationStatus | The Specification Delivery Status |
| Class | SpecificationLifecycleStatus | The current "lifecycle" status of a specification. |
| Class | SpecificationPriority | The Priority with a Specification must be implemented. |
| Class | SpecificationFilter | The kinds of specifications that a listing should include. |
| Class | SpecificationSort | The scheme to sort the results of a specifications query. |
| Class | SpecificationDefinitionStatus | The current status of a Specification. |
| Class | NewSpecificationDefinitionStatus | The Initial status of a Specification. |
| Class | SpecificationGoalStatus | The target status for this specification. |
| Class | SprintSpecificationStatus | The current approval status of the spec on this sprint's agenda. |
| Class | SpecificationWorkItemStatus | Undocumented |