This document provides an overview of the standards-based training process for Navy SEALs. It describes the timeline and phases of training, including the NSW Prep Course, BUD/S (Basic Underwater Demolition/SEAL) training, and follow-on courses. BUD/S itself takes 27 weeks and has 3 phases focused on conditioning, diving, and land warfare. Strict physical and skills standards must be met to progress between phases and complete the pipeline, with around a 61% attrition rate overall and most candidates self-selecting out prior to Hell Week.