Environmental

Pennsylvania's Uniform Construction Code (UCC) requires radon-resistant construction features in:

AAll new residential construction statewide
BNew residential construction in high-radon counties designated by PADEP✓ Correct
COnly homes with basements
DOnly commercial buildings over 10,000 square feet

Explanation

Pennsylvania's UCC requires radon-resistant new construction (RRNC) techniques in counties with high radon potential as designated by PADEP. RRNC features (gas-permeable sub-slab layer, soil gas barrier, vent pipe) are cost-effective preventive measures that facilitate active mitigation if needed.

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