; (II) define categories of entities engaged in making available video programming; and (III) apportion the responsibilities for the provision, quality, pass-through, and rendering of closed captions among the entities defined by the Commission under subclause (II)— (aa) to ensure full access by viewers via all entities and combinations of entities that make video programming available to viewers; (bb) to ensure that the regulations can be enforced effectively against responsible parties; and (cc) to ensure that closed caption data remains with the video programming to which the data is added and is distributed in common formats so that closed captions can be exhibited intact by all other entities that subsequently make the programming available to viewers; (ii) shall require that an entity engaged in making available user-generated video, whether or not the entity is also engaged in making available video that is not user-generated video, provide easy-to-use authoring tools that— (I) permit users who post videos on the entity’s platform to add closed captions; and (II) conspicuously prompt users who post videos on the entity’s platform to use the tools; (iii) shall not distinguish between full-length programming and video clips; and (iv) for the purposes of determining closed captioning obligations under this section and assessing compliance with the regulations of the Commission governing the quality of closed captioning under paragraphs (j), (k), and (m) of section 79.1 of title 47, Code of Federal Regulations, or any successor regulation governing closed captioning quality, treat any programming that was live programming or near-live programming at the time that it was initially made available to viewers as prerecorded programming if it is again made available to viewers more than 24 hours after its initial availability.