Virginia Register of Regulations, November 8, 2010, Page 544:

‘Worker course requirements B.’ – I suggest that the Board consider specification that worker training conform to the recommended training requirements in the NIEHS Mold Workers’ Training Guideline of 2005. A panel of selected subject matter experts recommended specific topics/requirements and time frames for training professional remediation workers. The training calls for 21 hours of training that includes classroom lecture, demonstrations, and practical exercises, plus an examination of student comprehension. The USEPA has also published recommendations for remediation worker training. These would provide a baseline for training providers and the Board.