CFR Title 14 Chapter I Subchapter I PART 156 - STATE BLOCK GRANT PILOT PROGRAM 156.1 Applicability. 156.2 Letters of interest. 156.3 Application and grant process. 156.4 Airport and project eligibility. 156.5 Project cost allowability. 156.6 State program responsibilities. 156.7 Enforcement of State block grant agreements and other related grant assurances.