The bill H.345, introduced by Representative O'Brien, aims to prohibit the sale, distribution, or offering for sale of glitter that contains intentionally added synthetic polymer microparticles in the state of Vermont, effective January 1, 2028. The bill defines "glitter" as small, reflective particles used for decoration, and specifies that synthetic polymer microparticles are those added by manufacturers to achieve desired characteristics in concentrations of 0.01% or more by weight. The legislation also clarifies that synthetic polymer microparticles do not include naturally occurring polymers that have not been chemically modified by human intervention.

Additionally, the bill includes a provision that exempts biodegradable, soluble, or natural glitter that does not contain synthetic polymer microparticles from this prohibition. The act is set to take effect on July 1, 2025, allowing time for compliance before the ban is enforced.