Provision of Dangerous Goods Safety Adviser (DGSA) services to HMRC to support compliance with dangerous goods legislation, including specialist advice relating to the handling, storage and transportation of seized hydrocarbon oils. Like-for-like 3-year contract renewal.Provision of Dangerous Goods Safety Adviser (DGSA) services to HMRC to support compliance with dangerous goods legislation, including specialist advice relating to the handling, storage and transportation of seized hydrocarbon oils. Like-for-like 3-year contract renewal.