What does title II require for new construction and alterations?

Effective March 15, 2012, the ADA requires that all new construction or alterations by a state or local government be accessible as defined by the 2010 ADA Standards for Accessible Design.

Standards can be found here: https://www.ada.gov/2010ADAstandards_index.htm.

For additional information, take a look at the following resources:

FAQ: Where can I find a complete set of ADA standards for accessible design?

Fact Sheet: Open Doors to Everyone

Fact Sheet: Accessible Parking