This is the 13324th most frequent Russian word.
муниципалитету
"Муниципалитету" means "to the municipality" in English.
In this sentence, 'муниципалитету' is used in the dative case, indicating the target recipient of the action described (a request).
Я отправил запрос муниципалитету на получение разрешения.
I sent a request to the municipality for a permit.
Here, 'муниципалитету' conveys a subject in the dative case being obligated or needing to perform an action (to develop a plan).
Муниципалитету необходимо разработать план развития территории.
The municipality needs to develop a territory development plan.
In this sentence, 'муниципалитету' in the dative case signifies the entity intended to receive the decision for review.