City of Baltimore
Baltimore City Code

§ 6-3. Duty to affix numbers.

(a) Affixing to new buildings.

The owner of any new house or other building shall affix or place on the premises, in the manner prescribed in this subtitle, the correct number of that house or other building, as determined and fixed by the Department of Transportation.

(b) Maintaining on all.

The owner or occupant of any house or other building shall affix and shall at all times maintain on the premises the correct number of that house or other building, as determined and fixed by the Department of Transportation.