City of Baltimore
Baltimore City Code

§ 5-605. Methods of treatment.

The method for treating a collection of water to prevent mosquitoes from breeding must be one or more of the following:

(1) emptying all water at least once every 5 days;

(2) using a larvicide approved by and applied in accordance with the requirements of the United States Environmental Protection Agency;

(3) cleaning and keeping the water free of vegetable growth and other obstructions and stocking with mosquito-destroying fish (the absence of half-grown or larger mosquito larvae to be evidence of having complied with this method);

(4) filling or draining to the satisfaction of the Commissioner of Health;

(5) removing, at least once every 5 days, all tin cans, tin boxes, broken or empty bottles, and similar articles likely to hold water;

(6) screening with wire netting of at least 16 meshes to the inch each way;

(7) screening with any other material that will prevent the ingress or egress of mosquitoes; or

(8) any other method that the Commissioner approves.