There are two situations in which the TST is not required. Applicants providing written documentation (with a health-care provider’s signature) of a TST reaction of 5 mm or greater of induration or applicants with a history of a severe reaction with blistering to a prior TST may be excluded from this requirement. Applicants in these two groups must undergo a chest radiograph. A verbal history of a positive TST reaction from the applicant is not acceptable. If the TST is not administered for one of these two reasons, the civil surgeon should not check the box next to “Tuberculin Skin Test”.
