Context: The Fair Housing Act has been strengthened since its adoption in 1968, but enforcement continues to be a concern among housing advocates. According to a 2010 evaluation of Analysis of Impediments (AI) reports done by the Government Accountability Office, enforcement is particularly inconsistent across local jurisdictions.

Question: when did the fair housing act became law?
Steam of consciousness below:
The relevant sentence in the passage is: The Fair Housing Act has been strengthened since its adoption in 1968, but enforcement continues to be a concern among housing advocates.
So, the answer is 1968.