it would be farther back. US code usually puts definitions at the front. when i found the area, "vaccine" was not one of the words defined. however, a change to the definition would not have a retroactive effect. one would not expect a law from the 1950s that used the word "web" to be referring to the internet.
That is very interesting. I looked up that legal code you mentioned, but I can not find the definition you speak of in it.
https://www.law.cornell.edu/uscode/text/42/300aa-22
Can you direct me to where "vaccine" is legally defined in that code?
it would be farther back. US code usually puts definitions at the front. when i found the area, "vaccine" was not one of the words defined. however, a change to the definition would not have a retroactive effect. one would not expect a law from the 1950s that used the word "web" to be referring to the internet.