Environmental
What is a 'Phase I Environmental Site Assessment' timeframe — how long is it considered 'current' under ASTM standards?
A6 months
B180 days, with updates allowed within one year for components older than 180 days✓ Correct
C2 years
D5 years
Explanation
Under ASTM E1527-21 standards, a Phase I ESA is valid for 180 days. Components older than 180 days may need to be updated, and the entire Phase I must be renewed within one year for use in establishing the innocent landowner defense.
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