Hazardous cargo separation: explosives require greater isolation and storage must follow IMDG and specific safety rules. Guidelines require hazardous goods to be stored in isolated approved premises with specified construction standards; explosives are treated separately with substantially greater separation from administrative buildings, other hazardous cargo separation from administrative buildings follows a uniform distance, and separation between hazardous and general cargo in port areas follows the IMDG Code. Land-based storage in customs notified areas must follow applicable specific rules for particular hazardous materials, and specific rules override port rules in case of conflict.