Required forms 2020 Required regulation 7 record-keeping Excel templates: 0 - 50 Tanks. 51 - 250 Tanks. 251 - 500 Tanks. 501 - 1000 Tanks. 1001 - 2500 Tanks. 2501 - 5000 Tanks. Guidance on meeting the requirements of Regulation 7 Reporting guidance document. Responsible official certification.