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Each country varies with their EPA (environmental protection authority) regulations when it comes to the storage and maintenance of bulk fuel.
Below is a list of useful resources you can use to give clarity of this topic for different parts of the world:
USA – https://www.epa.gov/laws-regulations
UK – https://www.netregs.org.uk/media/1299/gpp-2-pdf.pdf
EUROPE – https://ec.europa.eu/
ASIA / PACIFIC – https://asiapacificenergy.org/
