SAN FRANCISCO-While eight states have mandated some form of sexual harassment training for in-state companies, California has gone a step further by requiring it for any U.S. firm with 50 or more employees, if it has at least one supervisor based in the Golden State.

The sweeping mandate and detailed requirements for training every other year, set to go into effect in early 2007, have prompted employment lawyers to warn clients with staff in California that ignoring the mandate could be held against them in any future employment litigation.