Fitness-For-Service (FFS) has proven to be one of the most impactful tools available to help owner-operators safely extend equipment life and optimize mechanical integrity decisions. FFS technology continues to evolve since the initial publication of API RP 579 in 2000. With each subsequent edition of the document there have been significant upgrades to existing technology as well as the introduction of new technology. This presentation will provide an overview what to expect in the next publication of API 579-1/ASME FFS-1 (API 579) as well as the on-going activities within the ASME/API FFS Joint Committee that will affect future editions of the International Code.