Wal-Mart Stores, Inc., has entered into a corporate-wide settlement agreement with the U.S. Department of Labor to improve safety and health conditions in all 2,857 Wal-Mart and Sam's Club stores under federal jurisdiction. The settlement, which resolves two enforcement cases that began in 2011, includes provisions for the Bentonville, Ark.-based retailer to enhance safety and health practices and training related to trash compactors, cleaning chemicals and hazard communications corporate-wide. Under the settlement, trash compactors must remain locked while not in use, and may not be operated except under the supervision of a trained manager or other trained, designated monitor. Wal-Mart will also improve its hazard communications training; and, for cleaning chemicals, will enhance its procedures to ensure that employees do not handle undiluted chemicals.