048-1 Wyo. Code R. § 1-4
(a) These regulations shall apply to all pupils attending, full or part time, any public or private school or child caring facility.
(b) No School Administrator or Child Caring Facility Administrator shall retain any pupil thirty (30) days after entry without official written documented proof of immunization according to the schedule published by the State Health Officer except when there are exemptions as noted in these regulations. Pupils who are exempt from immunizations shall remain in school during an appeal process unless there is a vaccine-preventable disease outbreak as defined by Section 5(c) of this Chapter.
(c) A pupil who requires a series of immunizations over a period of more than thirty (30) calendar days shall be permitted to attend school while receiving continuing immunization if the School Administrator receives written notification by a licensed private physician or his representative or by a public health official specifying a written schedule for necessary immunization completion within the medically-accepted time period.
048-1 Wyo. Code R. § 1-4