The Transport Salaried Staffs' Association (TSSA) is a trade union in the United Kingdom that represents employees in the transport sector. Founded in 1897, it advocates for the rights and interests of salaried staff working in various transport industries, including railways, buses, and other related services. The TSSA focuses on improving working conditions, pay, and job security for its members. The union is involved in negotiations with employers and government bodies to ensure fair treatment and support for its members. It also provides resources and assistance for professional development, helping members navigate their careers within the transport industry.