; and (C) improve highway safety, traffic congestion, and air quality; and (4) the ability to provide for the maintenance and operation of the facility. (i) Federal share Notwithstanding section 120, the Federal share for a project carried out under this subsection shall be up to 100 percent. (j) Treatment of projects (1) In general Notwithstanding any other provision of law, projects funded under this section shall be treated as projects on a Federal-aid highway under this chapter. (2) Period of availability Funds appropriated for projects under this section shall remain available for a period of 3 years after the last day of the fiscal year in which the funds are made available. (k) Prohibition on charging fees To be eligible for a grant under this section, an eligible entity shall agree that no fees will be charged to a commercial motor vehicle to access parking constructed, opened, or improved with a grant under this section. (l) Notification of congress Not less than 3 business days before making a grant for a project under this section, the Secretary shall notify, in writing, the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on the Environment and Public Works of the Senate of the intention to award such a grant. (m) Survey and comparative assessment (1) In general Not later than 18 months after the date of enactment of this subsection, and every 2 years thereafter, the Secretary, in consultation with appropriate State motor carrier safety personnel, motor carriers, State departments of transportation, and private providers of commercial motor vehicle parking shall submit to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on the Environment and Public Works of the Senate a report that— (A) evaluates the availability of adequate parking and rest facilities, taking into account both private and public facilities, for commercial motor vehicles engaged in interstate transportation