1. The Planning Board shall prepare a "Canton Center Heritage Structure Survey
1. The Planning Board shall prepare a "Canton Center Heritage Structure Survey and Findings Report" which shall identify the building or groups of buildings within the Canton Center Economic Opportunity District that have aesthetic or historic significance or are determined to contribute to the character of Canton Center. Heritage Structures are defined as: (1) Historic Structures, (2) noteworthy Period Structures, and (3) structures or groups of structures determined to contribute to the character of Canton Center as determined by the Planning Board. The Planning Board shall promote the preservation of Heritage Structures and shall actively advocate for their rehabilitation.