2. ZONE CHANGES TO ALLOW THE "RESEARCH AND DEVELOPMENT (R&D)" LAND USE AS A USE PERMITTED BY RIGHT WITHIN THE 5.6 BUSINESS PARK ZONING DISTRICT OF PLANNING AREA 4 (LOWER PETERS CANYON) AND THE 4.8 IRVINE CENTER GARDEN COMMERCIAL ZONING DISTRICT OF PLANNING AREA 33 (IRVINE SPECTRUM CENTER)