Md. Code, Agriculture § 4–311.7

(a) A packer or distributor shall:

(1) Keep accurate records showing the number of eggs sold or delivered to any person;

(2) Keep required records at each place of business or at a central location within the State;

(3) Keep required records for 1 year; and

(4) Make required egg records available to the Secretary upon request.

(b) A retailer or food service facility shall keep each invoice delivery ticket received in accordance with § 4–308 of this subtitle for 90 days.