35 Ill. Adm. Code 219.464
Emission Testing
Section 219
Section 219.464 Emission
Testing
a) Upon a reasonable request by the Agency, the owner or operator
of a VOM source required to comply with a limit of Sections 219.461 through
219.464 of this Part shall conduct emissions testing, at such person's own
expense, to demonstrate compliance.
b) A person planning to conduct a VOM emission test to
demonstrate compliance shall notify the Agency of that intent not less than 30
days before the planned initiation of the tests so the Agency may observe the
test.