The Labor Estimating Manual (LEM), one of MCAA's most popular publications, has been revised and nearly doubled in size. Since its first printing in 1972, the LEM has been a nationally recognized publication for labor units. The LEM Committee's most recent update of the manual included more industrial items, such as chrome moly's and nickel alloys. For publication information, please call Antoinette Shupp at 301/990-2200.