Where can I find out which services are participating in JAG? You can find all participating services on the JAG website using this link: Participating services You can use the search function at the bottom of the page if you are looking for a specific service. Related articles Where do I find the unit checklist? Does JAG provide guidance on the number of endoscopes required by an endoscopy service? Can JAG review proposed building layouts and designs for endoscopy services, or provide consultancy? How do I sign off GRS? My service is accredited, when is the GRS due for submission ?