Forest Park Vaccine: Pfizer Des Plaines Vaccine: Pfizer South Holland Vaccine: Pfizer All the above locations offer both appointment-based and walk-in vaccinations, according to the county. Officials noted that 16 and 17-year-olds will not be eligible at the Tinley Park location as the Pfizer vaccine is the only option currently approved for emergency use in that age group. Anyone under 18 must be accompanied by a parent or guardian. The Tinley Park site, located at 18451 Convention Center Drive, will not offer extended hours and will, instead, remain open 8:30 a.m. to 5:30 p.m. Monday through Saturday, officials said. Those age 18 years and older have the choice between Moderna or Johnson & Johnson vaccines.