Welcome to APOG and AppendixJ.net

AppendixJ.net is the website of the Appendix J Program Owners Group (APOG).  This is an organization of Industry Engineers, Businesses and Consultants who work in the field of Appendix J and bring their combined knowledge to the forefront of the industry.

APOG is chartered to share information and experiences amongst engineers and program owners and as such provides documentation, forums and contacts within our industry.  This site also provides a primary reactor containment leakage testing forum designed to share operating experience and knowledge, as well as identify testing issues pertaining to methodology, practices and component performance as areas targeted for potential improvement, affords a centralized repository for storage of, and access to, technical information and documents, all with the intent to assist members with improved implementation of their containment leakage testing programs.