Chittagong Hill Tracts Regulation, 1900 (Act 1 of 1900) popularly known as Chittagong Hill Tracts manual is a manual enacted by the then British India Government describing how to administer the Chittagong Hill Tracts of present-day eastern Bangladesh. It was adopted in place of earlier manuals, after the government realised that the act of 1860 would not work satisfactorily. Since the adoption of the manual, the administration of Chittagong Hill Tracts was carried on in accordance with the rules of the manual. A law titled "Hill Districts (Repeal and Enforcement of Law and Special Provision) Act, 1989" has been enacted to repeal the Regulation. The Chittagong Hill Tracts Regulation received the assent of the Governor General on 6 January 1900 and was published in Calcutta Gazaette on 17 January 1900. The new regulation became effective from May 1900 and the old designation of superintendent was restored and the earlier rules were annulled. In 1920, the superintendent title was designated as deputy commissioner and the responsibility was put in charge of the governor and his executive council after amending the regulation. Earlier in 1881, Chittagong Hill Tracts Frontier Police Regulation was adopted for effective administration of police force in the Chittagong Hill Tracts. This force was composed almost exclusively of the tribes people. This Frontier Police Regulation also became a part of the Chittagong Hill Tracts manual.

Main features

The main features of Chittagong Hill Tracts manual were as following But now-a-days this provision and other provisions of Chittagong Hill Tracts manual protecting the interests of the tribes are more disregarded than followed. However, Bandarban became a sub-division in 1952 and in 1981 it became a district. In January 1970, the headquarters of Ramgarh sub-division was shifted to Khagrachari from Ramgarh;later in 1983 it became a district. Thus Chittagong Hill Tracts became three districts.

Result of the enforcement of the manual

As a result of the enforcement of the manual, the old Taluks (a certain administrative area), which were created by Rani Kalindi were abolished and the Circles were divided into Mouzas and a Headman was put in charge of a Mouza. A Karbari (village headman) was put in charge of one village, while several villages composed one Mouza. Each Headman collects Jhum rent and pays it to the Chief, while the chief pays the plough rent to the Sub-Divisional Officer or the D.C after collection. The investiture of the Chiefs was regulated by the Bengal Government.