New Developments in API 579

New developments in API 579 Recommended Practice For Fitness-For-Service [1] is presented in this paper. This document was initially released in January of 2000 and since that time has become the de facto international fitness-for-service standard for the refining and petrochemical industry. A discussion of the changes planned for the next release of API 579, efforts to validate the fitness-for-service technology incorporated in API 579, and a discussion of a new API document pertaining to damage mechanisms are provided. Plans for a joint API and ASME standard and future directions of the API in-service inspection codes relative to API 579 and equipment integrity are also covered.