An arborist should be familiar with American National Standards Institute (ANSI) Standard A300 which covers standard practices for tree, shrub, and other woody plant management. The standards also provide guidelines for writing work specifications. ANSI A300 standards unify and take authoritative precedence over all previously existing tree care industry standards and guidelines (in USA).
ANSI A300 covers pruning, soil management, supplemental support systems, lightning protection systems, management, transplanting, integrated vegetation management, tree risk management, and integrated pest management.
ANSI A300 is available in the Urban Forestry collection of books in the CCSE's Energy Resource Library as Call Number: SD407 .A432 2007 in English. It is also available in the library in a Spanish Language version.