If you are in the construction trades or building maintenance, these books are a "must-have" to stay on top of the latest regulations. Many cities use the International Codes for the basis of their regulations. These are hot off the press 2009 manuals. They can more than pay for themselves by keeping you out of trouble with the local building inspectors.
Provides requirements for continued use and maintenance of plumbing, mechanical, electrical and fire protection systems in existing residential and nonresidential structures.