Washington, D.C. ? Americans born after Dec. 1, 1964, will have to get more secure driver’s licenses in the next six years under ambitious post-9/11 security rules to be unveiled today by federal officials.

The Homeland Security Department has spent years crafting the final regulations for the REAL ID Act, a law designed to make it harder for terrorists, illegal immigrants and con artists to get government-issued identification.

Without discussing details, Homeland Security Secretary Michael Chertoff promoted the final rules for REAL ID during a meeting Thursday with an advisory council.

The American Civil Liberties Union has fiercely objected to the effort, particularly the sharing of personal data among government agencies.