folder-open_16 2015 International Plumbing Code pdf
  folder-open_16 2015 International Residential Code pdf
  folder-open_16 Louisiana Title 17, Construction, Last amended Dec. 2019 pdf
  folder-open_16 Title 51 Public Health Sanitary Code, Part XIII. (Part 13) Sewage Disposal word
  folder-open_16 NASCLA Guide to Business, Law and Project Management, Louisiana Master Plumbers and Master Natural Gas Fitters, 2nd Edition link