; or (ii) is not sufficiently durable or washable to be, or is not intended to be, reusable or refillable. (B) Exclusions The term single-use plastic does not include— (i) medical equipment, medical devices, consumer personal protective equipment, or other products determined by the Secretary of Health and Human Services to necessarily be made of plastic for the protection of public health or for people with disabilities; (ii) packaging that is— (I) for any product described in clause (i) that is determined by the Secretary of Health and Human Services to necessarily be used for the protection of public health or for people with disabilities; or (II) used for the shipment of hazardous materials, such that the packaging is prohibited from being composed of used materials under section 178.509 or 178.522 of title 49, Code of Federal Regulations (as in effect on the date of enactment of this Act); or (iii) personal hygiene products that, due to the intended use of the products, could become unsafe or unsanitary to recycle, such as diapers. (22) Temporary pause period The term temporary pause period means the period— (A) beginning on the date of enactment of this Act; and (B) ending on the date that is the first date on which— (i) all regulations and final rules required under subsections (c), (d), and (e) of section 4 are in effect; and (ii) the amendments made by subsection (h) of that section are fully implemented. (23) Toxic substance (A) In general The term toxic substance means any substance, mixture, or compound that— (i) may cause— (I) personal injury or disease to humans through ingestion, inhalation, or absorption through any body surface; or (II) adverse impacts on the environment