Majlis Adat Istiadat Sarawak deals with all matters relating to the customary laws and Adat of the various natives of Sarawak other than Malays or natives who profess Islamic religion. " Adat " means a native custom or body of customs to which lawful effect has not been given thereto under the Native Customs (Declaration) Ordinance, 1996 (Cap.22) or any other written law and shall be deemed to include the tradition and culture of the natives.


The authority conferred upon the Majlis is vested under the Majlis Adat Istiadat Sarawak Ordinance 1977 together with three (3) other subsidiary legislations as below:

(i) Native Courts Ordinance 1992

(ii) The Native Courts Rules 1993 and

(iii) Native Customs (Declaration) Ordinance 1996.