LDA meaning in Governmental ?

The Lobbying Disclosure Act of 1995 (2 U.S.C. § 1601) was legislation in the United States aimed at bringing increased accountability to federal lobbying practices in the United States. The law was amended substantially by the Honest Leadership and Open Government Act of 2007. Under provisions which took effect on January 1, 1996, federal lobbyists are required to register with the Clerk of the United States House of Representatives and the Secretary of the United States Senate. Anyone failing to do so is punishable by a civil fine of up to $50,000. The clerk and secretary must refer any acts of non-compliance to the United States Attorney for the District of Columbia.

A consequence of the act is that the act "removed from Foreign Agents Registration Act a class of agents who are engaged in lobbying activities and who register under the LDA. This Act is administered by Congress."