At any time or times before or after the formal adoption of the official comprehensive plan by the corporate authorities, an official map may be designated by ordinance, which may consist of the whole area included within the official comprehensive plan or one or more geographical or functional parts and may include all or any part of the contiguous unincorporated area within one and one-half miles from the corporate limits of the village. All requirements for public hearing, filing notice of adoption with the County Recorder of Deeds and filing of the plan and ordinances, including the official map with the Clerk shall be complied with as provided for by law. No map or plat of any subdivision or re-subdivision presented for record affecting land within the corporate limits of the village or within contiguous territory which is not more than one and one-half miles beyond the corporate limits shall be entitled to record or shall be valid unless the subdivision shown thereon provides for standards of design and standards governing streets, alleys, public ways, ways for public service facilities, street lights, public grounds, size of lots to be used for residential purposes, and distribution, sanitary sewers, and sewage collection and treatment in conformity with the applicable requirements of the code, including the official map.
(65 ILCS 5/11-12-12) (2009 Code, § 4-1-6)