The intent of the change, according to the agency, was simply to give contractors some extra time to comply with the new rules, which are applicable to acceptable work practices in pre-1978 housing.

The EPA’s handling of the new requirements had been strongly criticized by builders organizations for being insufficiently publicized — leaving many builders unaware of the training requirement until the deadline was upon them — and for failing to ensure that enough certified trainers were available in all parts of the country to provide...

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