| Setting up of Analytical Laboratory in Singapore. |
| Setting up of Analytical Laboratory of The Straits Settlements in Penang. |
| The Formation of the Department of Chemistry with the amalgamation of the Straits Settlements’ Laboratory in Penang and Colony of Singapore , the Chemical Division of the Institute for Medical Research(IMR) and the Trade and Customs Laboratory |
| Establishment of the DOC Headquarters Laboratory in Petaling Jaya on October 1957 |
| Establishment of the DOC, Federation of Malaya after separation from Singapore |
| Became the Department of Chemistry, Malaysia(DOC) with the incorporation of the Analytical laboratory of Sarawak State Government. |
| Official opening of DOC, Kuching Sarawak Branch on 18 May 1964 |
| Official opening of DOC, Terengganu Branch on 26 August 1971 |
| Official opening of DOC Johore Branch on 29 April 1972 |
| Official opening of DOC, Perak branch on 19 August 1975 |
| Official opening of DOC Kota Kinabalu, Sabah Branch on 9 July 1977 |
| Official opening of DOC Pahang Branch on 15 April 1986. |
| Official opening of new building of DOC Johor Branch on 30 April 1992. |
| Official opening of new building known as Forensic Science Centre at DOC Headquarters , Petaling Jaya on 06 Oktober 1992. |
1994 | Official opening of Forensic DNA Analysis Laboratory at Forensic Science Centre DOC Headquarters , Petaling Jaya on 17 November 1994. |
2000 | Official opening of new building of DOC Perak Branch on 08 May 2000 |
2000 | Official opening of new building of DOC Sabah Branch on 21 July 2000. |
2000 | Official opening of new building of DOC Kuching, Sarawak Branch on 19 September 2000. |
2001 | Official opening of new DOC Malacca Branch on 09 April 2001. |
2003 | Official opening of new building known as Main building DOC Headquarters, Petaling Jaya on 24 March 2003 |
2003 | Official opening of new DNA Bacteria & Virus analysis Laboratory at Main building DOC Headquarters on 24 March 2003 |
