Regarding the vulnerable population, it should not only be in the preamble, because the preamble is worth the paper it's printed on.
Also, the people who suffer from multiple chemical sensitivities, how do you deal with them? They're not mentioned in the vulnerable population that is on the PCPA, and they should be addressed, because these people--either they were veterans who went to the Gulf War and have been affected by chemicals over there, or people in their everyday life--are being affected. These people become isolated because they cannot stand any perfumes or any chemicals.
How do you address their problems?