when was asbestoes shingles stop being used in new orleans ?
That is actually a trick question.
Asbestos manufacturing began to be limited in the early 70's and 2 agencies, NIOSH and the EPA have slight differences in regulatory approval of different products.
For all intents and purposes, figure "around" 1975 for roofing shingles, but the regulations do not apply to imported materials into the US from other countries.
See the following excerpt from an article I have saved regarding asbestos, "ACM" Asbestos Containing Materials:
Also, not all shingles that look to be asbestos type, are not necessarily so. Only a proper testing can reveal that for sure, to see if the content is friable.
"by Dr. Barry I. Castleman, Environmental Consultant
Around the world, when public health workers call for national bans on asbestos, one of the things they hear from the local asbestos industry is that the U.S. has not banned asbestos. The U.S. Environmental Protection Agency (EPA) issued regulations to phase out the use of almost all asbestos products in 1989, and these rules were overturned in a court challenge in 1991. Industry spokesmen accordingly emphasize that the sale of almost all asbestos products is still allowed in the U.s. and point to the existence of a 1986 International Labor Organization OLO) convention on asbestos to assert that there are international standards in effect for “controlled use” of asbestos.(2)"
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