H.R. 218, known as “The Law Enforcement Officers Safety Act of 2004”, was signed into law on January 20, 2004. The purpose of the Act is to exempt qualified current and former law enforcement officers from State Laws prohibiting the carrying of concealed handguns.
The two links below will provide you with an excellent explanatory overview of the Law, as well as a full copy of the Law in it’s entirety.
To view an overview of H.R. 218: http://www.njlawman.com/Feature%20Pieces/HR%20218.htm
To View the whole law: http://www.leaa.org