Navigate To ... Apprenticeship and dual training Codes and Laws Construction contractor registration Electrical contractors Elevator contractors Employment practices High pressure piping contractors FAQs about high pressure piping High pressure piping code High pressure piping contractor license High pressure piping inspectors High pressure piping permits License forms, permits, plan review and local governments Manufactured structures Plumbing and mechanical contractors Residential contractors, remodelers, roofers Safety and health at work Workers' compensation For business > High pressure piping contractors > High pressure piping code High pressure piping code Minnesota's high pressure piping code is contained in: Minnesota Rules Chapter 5230 Chapter 5231 Minnesota Statutes Chapter 326B Purchase high pressure piping laws and rules