CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER C—AIR PROGRAMS (Parts 50–99) > PART 52—APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS > SUBPART D—Arizona (§52.111 to §52.150) > 52.111—Toll free number assignment.

52.111—Toll free number assignment.

Toll free numbers shall be made available on a first-come, first-served basis unless otherwise directed by the Commission.

Code of Federal Regulations

[63 FR 16441, Apr. 3, 1998]