This presentation will examine the requirements for design pressure reducing devices within standpipe and sprinkler systems, per NFPA 14 and 13. We will look over design simulations and discuss multiple different design methods and approaches to PRV within these systems. We will examine inspection, testing, and maintenance of standpipe systems according to the 2020 edition of NFPA 25. The presenter will discuss key equipment installed on standpipe systems and how it should be tested. There will be a discussion on evaluating test results and how to classify conditions that could impact the performance of the standpipe system. There will also be a discussion on potential changes to NFPA 25 and NFPA 14 that could impact future standpipe testing.