Most ETSI status codes (milestones) are applicable to all ETSI Deliverable types;
however, some ETSI Deliverables may require additional, specific milestones (e.g. European Standards (EN) and European Harmonised Standards hEN or European standardisation deliverable).

In particular, the default timeline for a work item may vary depending on whether the ETSI Deliverable falls under a Standardisation Request (SReq) from the European Union / European Free Trade Association (EU/EFTA) or not.
This distinction ensures that timelines are appropriate to the context of the ETSI Deliverable.