The safety requirements for other powered metalworking shears are contained in ANSI B11.4, but alligator shears are specifically exempted from that standard. Federal OSHA and various state OSHA programs have requirements for guarding alligator shears, and newly manufactured alligator shears are provided with guards that adjust to the size of the stock or scrap being cut. The purpose of this guard, however, is to prevent pieces of metal from being ejected during cutting.