The Borough is hereby divided into the following zoning districts and shown by the zoning district boundary lines on the East Pittsburgh Borough Zoning Map:
R-1 Traditional Residential District
R-2 High Density Residential District
NC Neighborhood Mixed Use Commercial District
C Commercial District
VC Vehicle Oriented Commercial District
M-1 Mixed Use Industrial District
OU Other Uses District
S Steep Slopes District
In addition to the zoning districts, this chapter establishes overlays as identified in Article IV.
The boundaries of the zoning districts are shown upon the East Pittsburgh Borough Zoning Map. This map shall be known and commonly referred to as the "Zoning Map." The map and all the notations, references and other information shown thereon are a part of this chapter and have the same force and effect as if they were all fully set forth or described herein. The original, properly attested Zoning Map shall be available for examination at the Borough Office and shall be reviewed and amended as deemed necessary by the Borough Council.
The district boundaries on the Zoning Map are intended to follow property lines; center lines of roads, watercourses, or railroads; other identifiable physical features; or measured distances from property lines, center lines, or identifiable physical features. When the Zoning Officer cannot determine the location of a zoning district boundary by reference to the Zoning Map, the Zoning Officer shall refuse action and the Board shall interpret the location of the district boundary with reference to the scale of the Map, the Comprehensive Plan and the purposes set forth in all relevant provisions of this chapter.
The provisions of this article apply to all zoning districts and all lots. Except when stated, all provisions of this chapter apply to all uses.
Where a zoning district boundary splits a lot, resulting in differing and nonuniform requirements for the lot, the following provisions shall apply:
A. 
Where the lot is large enough to be subdivided into two or more lots, each within a single zoning district, no zoning approval will be given for any authorized use which would utilize any portion of the lot other than that portion of the lot in which the principal use is located. Further development will require subdivision.
B. 
Where a lot cannot be subdivided in compliance with this chapter and the Subdivision and Land Development Ordinance, the authorized use permitted on the lot is limited to those authorized uses permitted in the zoning district in which the largest part of the lot is located, and the smaller part of the lot located in another zoning district will be subject to the provisions of this chapter where the largest portion of the lot is located. If this section creates an undue hardship, the Board has jurisdiction to grant such relief as the Board deems necessary.