With the renaming of the department on 26 September 1963, the Agricultural and Stock Department , Plant Industry Division, Agricultural Chemical Laboratory Branch became part of the Primary Industries Department.
In the year 1975 - 1976, the Branch was renamed the Agricultural Chemistry Branch. It became the chemical service laboratory for the Divisions of Plant Industries and Land Utilization, and a chemical regulatory laboratory for the Standards Division of the Division of Marketing. In the 1980s, the Branch became part of the Land Utilization Division subsequently called the Land Management Division.
The Branch developed methods of analysis, and provided analyses for producers and departmental research staff of soils, plants and water for nutrients, chemical residues, quality, and other aspects related to agricultural production; co-operated with the Standards Branch in the regulation of pesticides, stock feeds, veterinary medicines, and fertilisers; conducted land resource evaluations in co-operation with departmental soil surveyors.
With the creation of the Natural Resources Department on 26 February 1996, the functions of the Branch were transferred to the new department as part of the Resources Sciences Centre.