Uniform Construction Code

UPDATE: The revised regulations adopting the 2018 I Code series as reviewed and amended by the Review and Advisory Council (RAC) have an effective date of February 14, 2022. Where a design or construction contract is signed before this effective date, application may be made and permit issued under the Uniform Construction Code (UCC) in effect at the time of contract as long as application is made August 14, 2022 or before. Municipalities are permitted to adopt ordinance specifying a period prior to August 14, 2022. Additionally, the accessibility provisions of the 2021 I Code series were published on December 25, 2021 and became effective on December 25, 2021. The accessibility provisions adopted are also subject to the design contract provisions stated previously. Where a design or construction contract is signed before this effective date, application may be made and permit issued for accessibility provisions under the Uniform Construction Code (UCC) in effect at the time of contract as long as application is made June 25, 2022 or before. 

The Uniform Construction Code (UCC) Administration and Enforcement regulation has adopted the following codes for use throughout the Commonwealth of Pennsylvania, effective October 1, 2018.

  • International Building Code (IBC) 2015(code for all buildings and structures not regulated by the International Residential Code:
    • Chapter 1 is not adopted (most of its requirements are incorporated in Chapter 403 of the UCC regulation)
    • Chapter 27 (Electrical) requires that all electrical components, equipment, and systems in buildings and structures covered by the IBC comply with the requirements of National Fire Protection Association 70-2014, National Electric Code.
  • International Energy Conservation Code 2015
  • International Existing Building Code 2015
  • International Fire Code 2015 
    • Adopted only to the extent referenced in Chapter 35 of the International Building Code 2015.
  • International Fuel Gas Code 2015
    • Any liquefied petroleum gas requirements are superseded by the requirements of Pennsylvania’s Propane and Liquefied Petroleum Gas Act (and regulations)
  • International Mechanical Code 2015
  • International Performance Code for Buildings and Facilities 2009 (provides alternative compliance approach)
  • International Plumbing Code 2015
  • International Residential Code 2015 (code for one- and two-family dwellings no more than 3 stories in height)
  • International Wildland-Urban Interface Code 2015 (supplementary requirements that may be used to mitigate fire- and life-safety hazards in unique wildland areas)

Important Note

Many of these codes have various code sections amended by the UCC Review and Advisory Council (RAC). This information was published on September 28, 2018, in the Pennsylvania Bulletin and became effective on October 1, 2018. Access these changes. This information will also be posted on our website in the near future.