(1) Appropriate congressional committees 
The term appropriate congressional committees means the Committee on Banking, Housing, and Urban Affairs, and the Committee on Homeland Security and Governmental Affairs of the Senate and the Committee on Homeland Security and the Committee on Transportation and Infrastructure of the House of Representatives.

(2) Department 
The term Department means the Department of Homeland Security.

(3) Disadvantaged businesses concerns 
The term disadvantaged business concerns means small businesses that are owned and controlled by socially and economically disadvantaged individuals as defined in section^[1] 124, title 13, Code of Federal Regulations.

(4) Frontline employee 
The term frontline employee means an employee of a public transportation agency who is a transit vehicle driver or operator, dispatcher, maintenance and maintenance support employee, station attendant, customer service employee, security employee, or transit police, or any other employee who has direct contact with riders on a regular basis, and any other employee of a public transportation agency that the Secretary determines should receive security training under section 1137 of this title.

(5) Public transportation agency 
The term public transportation agency means a publicly owned operator of public transportation eligible to receive Federal assistance under chapter 53 of title 49.

(6) Secretary 
The term Secretary means the Secretary of Homeland Security.