The activities that are eligible for 23 U.S.C. 202(d) funding are:
Carrying out any planning, design, engineering, preconstruction, construction, and inspection of a bridge project to replace, rehabilitate, seismically retrofit, paint, apply calcium magnesium acetate, sodium acetate/formate, or other environmentally acceptable, minimally corrosive anti-icing and deicing composition; or
Implementing any countermeasure for deficient Tribal transportation facility bridges, including multiple-pipe culverts.
Further information regarding the use and availability of these funds can be found at 23 CFR part 661.