Residential Energy Conservation Code
Effective July 1, 2015, Baltimore County has adopted the International Energy Conservation Code (IECC) 2015 edition, Baltimore County Building Code 40-15 (PDF). All permit applications applied for on or after the effective date of July 1, 2015 shall comply with the provisions of International Energy Conservation Code (2015 edition).
Compliance methods consist of Prescriptive (specific insulation requirements) in Sections R402.1, R402.2, R403.2.1 or simulated performance alternative section R405 (an energy estimation tool used to compare the annual energy cost of the proposed design to the annual energy cost of the standard design).
Mandatory requirements apply to both Prescriptive and Performance based designs.
Revised October 3, 2016