City of Baltimore
Baltimore City Code

§ 9-2. Retention period.

The person must retain the records required by § 9-1 {"Retention required"} of this subtitle for at least 3 years from:

(1) the date on which the report, statement, or other item was filed; or

(2) if the report, statement, or other item was not filed, the date by which it was required to be filed.