How long do I need to retain a copy of the Shipper's Declaration for Dangerous Goods?
When you ship a Category A Infectious Substance via air, you must retain a copy of the shipper's declaration (either paper or electronic image) for two years, per 49CFR and IATA.
When you ship a Category A Infectious Substance via ground, you must keep a copy of the shipping paper for two years, per US regulation.
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