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.

Related Idaho Environmental Questions

Practice More Idaho Real Estate Questions

1,500+ questions covering all exam topics. Start free — no signup required.

Take the Free Idaho Quiz →