Recognized and generally accepted good engineering practices (RAGAGEPs) play an important role in the Occupational Safety and Health Administration's Process Safety Management standard (29 CFR 1910.119). Since 2007, OSHA issued numerous RAGAGEP-related citations under the Petroleum Refinery Process Safety Management and PSM Covered Chemical Facility National Emphasis Programs. Even though the PSM standard became effective over 20 years ago, noncompliance with PSM's RAGAGEP requirements remains an issue. This article reviews RAGAGEP basics from OSHA's perspective, using examples from national emphasis program inspections to illustrate common RAGAGEP compliance problems. (c) 2013 American Institute of Chemical Engineers Process Saf Prog 33: 156-161, 2014