in the Gulf of Mexico. Subtitle B—Advanced Air Mobility Sec. 951. Definitions. Sec. 952. Sense of Congress on FAA leadership in advanced air mobility. Sec. 953. Application of National Environmental Policy Act categorical exclusions for vertiport projects. Sec. 954. Advanced Air Mobility Working Group amendments. Sec. 955. Rules for operation of powered-lift aircraft. Sec. 956. Advanced propulsion systems regulations. Sec. 957. Powered-lift aircraft entry into service. Sec. 958. Infrastructure supporting vertical flight. Sec. 959. Charting of aviation infrastructure. Sec. 960. Advanced air mobility infrastructure pilot program extension. Sec. 961. Center for Advanced Aviation Technologies. TITLE X—Research and Development Subtitle A—General Provisions Sec. 1001. Definitions. Sec. 1002. Research, engineering, and development authorization of appropriations. Sec. 1003. Report on implementation