The APGA Security and Integrity Foundation (SIF) is a non-profit 501(c)(3) corporation created in 2004. The SIF is dedicated to promoting the security and operational integrity of natural gas distribution and utilization facilities. SIF resources enhance the ability of small gas system operators to prevent, mitigate and repair damage to gas distribution infrastructure.

SIF efforts focus on providing education, procedures & training, materials, services and products specifically designed to increase the knowledge, skills and abilities of distribution, master meter and propane system operators. It also focuses on increasing operator compliance with federal and state regulation.