No subway or viaduct (as the said terms are defined in this Part) shall be constructed unless and until this Commission shall have issued an order so authorizing.
Ill. Admin. Code tit. 92, § 1535.601
No subway or viaduct (as the said terms are defined in this Part) shall be constructed unless and until this Commission shall have issued an order so authorizing.
Ill. Admin. Code tit. 92, § 1535.601