143.1 For a student who has not received a primary immunization, two (2) doses shall be administered. The second dose shall be administered not earlier than twenty-eight (28) days and not later than eight (8) weeks after the first dose.

143.2 MMR doses administered before the age of seven (7) may satisfy § 143.1, unless given before twelve (12) months of age or at an interval of less than twenty-eight (28) days between doses.

143.3 If single antigen measles, mumps, and rubella vaccines were administered, two (2) doses of each vaccine shall be administered not less than twenty-eight (28) days apart. A dose of any one (1) of the single antigen vaccines and a dose of another of the single antigen vaccines shall not be administered less than twenty-eight (28) days apart, unless administered on the same day. A dose of MMR, Varicella, one of the single-antigen measles, mumps, and rubella vaccines, or any other live parenteral vaccine shall not be administered less than twenty-eight (28) days apart, unless administered on the same day.

SOURCE: Final Rulemaking published at 44 DCR 1656, 1663 (March 21, 1997); Final Rulemaking published at 55 DCR 5253 (May 2, 2008).