The Sri Lanka Administrative Service (SLAS) (Sinhala: ශ්‍රී ලංකා පරිපාලන සේවය; śrī laṁkā paripālana sēvaya) is the key administrative service of the Government of Sri Lanka, with civil servants working for both in the Central Government as well as in the provincial councils. It was formed as the Ceylon Administrative Service (CAS) in 1963 as the successor to the Ceylon Civil Service which was abolished on May 1, 1963. It is the senior of the public services.