The Commissioners may, from time to time, amend, supplement or change, by ordinance, the boundaries of the districts or the regulations herein established. Before taking any action on any proposed amendment, supplement or change, the Town Commissioners shall submit the same to the Planning and Zoning Commission for its recommendations and report, which shall forward the same, within 60 days of the request for amendment, back to the Town Commissioners.

The Planning and Zoning Commission shall hold a public meeting thereon before submitting its report to the Commissioners. Notice of public hearings before the Planning and Zoning Commission shall be given by publishing the time, place and nature of the hearing at least once and at least 15 days prior to such hearing in a newspaper having general circulation in Leonardtown. In addition, the Planning and Zoning Commission shall cause the date, time, place and nature of the hearing to be posted as a sign conspicuously on the property involved for a period of not less than 10 days immediately preceding the hearing. The sign shall read: ZONING AMENDMENT NO. _______________ PENDING FROM ________________ TO _________________ MEETING DATE ____________________.

Within 90 days of application for a zoning text and map amendment, the Town Commissioners shall hold a public hearing. Where such amendment is not consistent with the Master Plan, a favorable vote of 80% of the total number of Town Commissioners is required; otherwise, a majority must vote in favor of the proposed amendment.

Whenever a petition requesting an amendment, supplement or change has been denied by the Town Commissioners, such petition or one substantially similar shall not be considered sooner than two years after the previous denial.

Under the provisions of Chapter 116 of the Code of Public General Laws of Maryland, Article 23A, § 19(c), as amended in 1971, no municipality annexing land may, for a period of five years following annexation, place that land in a zoning classification which permits a land use substantially different from the use for the land specified in the current and duly adopted Master Plan or Plans or, if there is no adopted or approved Master Plan, the adopted or approved General Plan or Plans of the county or agency having planning and zoning jurisdiction over the land prior to its annexation without the express approval of the Board of County Commissioners or County Council of the county in which the municipality is located.