35 Ill. Adm. Code 215.128
Measurement of Seal Gaps
Section 215
Section 215.128 Measurement
of Seal Gaps
a) Any measurements of secondary seal gaps shall be conducted in
accordance with the methods and procedures specified in 40 CFR 60, Subpart Kb
incorporated by reference in Section 215.105.
b) A person planning to conduct a measurement of seal gaps to
demonstrate compliance with this Subpart shall notify the Agency of that intent
not less than 30 days before the planned performance of the tests so the Agency
may observe the test.