What must retailers maintain regarding their pseudoephedrine sales records if electronic recordkeeping is impractical?

Retailers are required to maintain records of pseudoephedrine sales for a duration of two years if electronic recordkeeping is impractical. This requirement is in place to ensure compliance with regulations designed to monitor the sale of substances that can be used in the illegal manufacture of methamphetamine. The two-year period allows for adequate traceability and accountability of the sales, aiding law enforcement efforts to track potential abuse of these products.

While the other time frames mentioned may have relevance in different contexts or regulations, they do not align with the specific requirement for pseudoephedrine sales. The two-year maintenance period reflects a balance between recordkeeping burden and the necessity for monitoring these transactions in a responsible manner.