Which entity must receive adopted changes to the master plan within a specified time frame?

The correct choice pertains to the requirement that adopted changes to the master plan must be submitted to the county planning board. In New Jersey, the Municipal Land Use Law mandates that when a municipality adopts or substantially amends its master plan, it is required to send a copy of the adopted plan or its amendments to the county planning board. This requirement exists to ensure that the county is aware of the local planning decisions that might affect regional planning efforts, land use coordination, and compliance with state policies.

The function of the county planning board is critical as it helps to promote alignment between municipal plans and broader county objectives, ensuring that community development is consistent with regional growth and resource management strategies. The county planning board also reviews these plans for potential impacts on surrounding areas and provides critical guidance, which can help to improve intergovernmental cooperation and enhance the effectiveness of local planning efforts.

In contrast, the other entities listed have different roles. The county legislative board does not have the same oversight role as the county planning board regarding master plans. The municipal council is involved in adopting the master plan but is not the recipient of submitted changes. The state planning authority plays a distinct role in overarching state-level policy and planning but does not need to receive local master plan amendments directly.