The County’s Department of Housing and Community Affairs (DHCA), Division of Housing Code Enforcement requires residential lawn mowing, edging, trimming and yard waste removal services for properties identified by Montgomery County’s Clean and Lien Program. Properties identified by this program will have grass, weeds and other vegetation in excess of 12” in height. In some instances, the ground cover to be removed may be mixed with woody material and excessive growth up to several feet in height. Further, the County also requires solid waste removal services in conjunction with the Clean and Lien Program. Solid waste may include appliances, furniture, construction materials, branches, tree limbs as well as trash, rubbish, and other smaller items. The County may also require Board Up services at vacant properties, primarily doors and windows found to be broken or inoperable. Properties requiring these services may be located anywhere in Montgomery County, excluding properties within Rockville and Gaithersburg city limits. Generally Clean and Liens and Board Ups are singular and are not placed on a rotation schedule. Assignments are made at sites throughout the County on an as needed basis. As often as possible, locations are grouped into geographic areas (zones) for practicality.