Amendments are sent to the legislatures of the  states by default. Only one amendment, the 21st, specified a  convention. In any case, passage by the legislature or convention  is by simple majority.
Yes, there is a MMRV VIS, as well as a MMR VIS and a Varicella VIS. The law requires that a Vaccine Information Statement (VIS) be given out whenever certain vaccinations are administered, including MMR, varicella or MMRV vaccines.hen the first dose of measles, mumps, rubella, and varicella vaccines is administered at ages 48 months and older, use of MMRV vaccine generally is preferred over separate injections of MMR and varicella vaccines.
Remember: Live vaccines can be given on the same day. The 4-day grace period does not apply to the 4-week minimum interval between 2 different live vaccines. It does apply to the 4-week minimum interval between doses of the same live vaccine, such as the 4 weeks between MMR 1 and MMR 2.It is always best to follow the recommended schedule as closely as possible. Vaccine administration at the recommended ages and intervals provides optimal protection. Live Vaccines Live vaccines can be given on the same day. If they are not given on the same day, they should be separated by a minimum 4-week interval, because the immune response to one of the vaccines might be impaired.