Conservation Units (UC) are territorial spaces protected by the public power due to their relevance for maintaining the environmental quality of a given region. Integral Protection Conservation Units play a fundamental role in the  municipality of Macaé, considering the existing biodiversity and the importance of maintaining spaces that can provide an ecologically balanced environment as required by Article 225 of the 1988 Federal Constitution. to emphasize the importance of complying with the legislation related to these spaces and keeping them exercising their primary purpose. Thus, the present work sought to define a method for evaluating and analyzing the effectiveness of the management of Natural Parks under the management of the Municipality of Macaé through adaptations of the RAPPAM method and using ISO 14001: 2015 requirements as a reference. This work was based on a descriptive research, with a review of official government documents and existing doctrine. In addition, it is based on a study carried out at the Municipal Natural Park of Atalaia located in the municipality of Macaé, in which a management effectiveness index of 58% was identified that reveals a management and management effectiveness considered regular considering the related existing literature to the theme.

Keywords: Conservation units. Municipal park. Environmental Management