NFPA 11A contains the minimum requirements for the installation, design, operation, testing, and maintenance of medium and high expansion foam systems.
Contractor campus always has the right books we recommended to study! Including this main one, NFPA 11A Standard for Medium and High Expansion Foam Systems.talia perez
All my questions were answered by the customer service rep that helped me out. She offered me their online courses that helped me find information quickly in the books and did a lot of great practice exams. I would definitely recommend this company to any getting a license! Thanks!
TJ Dillashaw