To require a waiver if the installation of differently colored tiles in certain tunnel projects is expected to create additional costs, and for other purposes.

Removing Extra Transportation Infrastructure Luxury Expenses Act or the RETILE Act This bill prohibits a state or local government, for purposes of a project that receives public assistance disaster-related grants, from installing differently-colored tiles in a tunnel if such installation is reasonably expected to incur a higher cost than the installation of same-color tiles, and a waiver has not been obtained from the Department of Homeland Security (DHS). DHS may grant a waiver based on safety, historic preservation, or other factors. DHS must withhold funding for a federal-aid highway project if such project uses differently colored tiles in a tunnel and the installation of such tiles is reasonably expected to incur a higher cost than the installation of same-color tiles and DHS has not issued a waiver.