1985 House Bill 5705. An Act To Adopt The Conclusion By The National Research Council, National Academy Of Sciences That The Average Formaldehyde Level In Houses In The United States Is 0.1 Ppm Or Below And To Clarify That Massachusetts Homes With Urea Formaldehyde Foam Insulation Are Similar Or Identical To Homes That Do Not Have Urea Formaldehyde Insulation.