No - general guidelines from OSHA, ANSI/ASSP and most manufacturers state fall protection equipment does not have a specified shelf-life or life expectancy. The reference to five years comes from an older ANSI/ASSP A10 standard. ANSI/ASSP A10 addresses construction and demolition and one of the requirement listed in an older A10 standard was that unless the manufacturer specifies otherwise, harnesses should be removed from service after five years. ANSI/ASSP Z359 Fall Protection Code which applies to both general industry and construction does not include that language.