New signs posted around Spring Training camps are showing that a new rule banning guns, long knives and explosives from Major League clubhouses is in effect.
According to the Associated Press, the signs state that "individuals are prohibited from possessing deadly weapons while performing any services for MLB." The rule applies to MLB employees, including the Commissioner's Office, and teams, which means all players, coaches and front-office personnel.
Rich Levin, MLB vice president of communications, said that baseball negotiated the policy with the union and it has been sent out to all clubs to post in their clubhouses during Spring Training and the regular season.
"It's our policy we started last season," he said.
An anonymous baseball official told the Associated Press that the league instituted the rule after former NFL player Plaxico Burress shot himself and ended up in prison.
Firearms in locker rooms also became an issue in the NBA this year. Washington Wizards guard Gilbert Arenas was suspended for having guns in his locker at his home arena and violating a weapons ban that is in the NBA's labor contract.
According to the AP, baseball's rule is called "Major League Baseball's Weapon-Free Workplace Policy," and it reads that MLB "shall prohibit the possession or use of deadly weapons in any facility or venue owned, operated, or controlled by it."
Included are "firearms, explosives, daggers, metal knuckles, switchblade knives, and knives having blades exceeding 5 inches."
The AP added that security and law-enforcement officials are excluded from the rule and that possession in parking lots will be permitted "if protected by local laws."
Doug Miller is a national writer for MLB.com. Barry M. Bloom contributed to this report. This story was not subject to the approval of Major League Baseball or its clubs.