Vt. Stat. Ann. tit. 32, § 3802a

Before April 1 of each year, owners of property exempt from taxation under subdivisions 3802(4), (6), (9), (12), and (15) and under subdivisions 5401(10)(D), (F), (G), and (J) of this title shall provide their local assessing officials with information regarding the insurance replacement cost of the exempt property or with a written explanation of why the property is not insured.