FDA
If a police agency like the F.B.I. or C.I.A. sure. otherwise taps, flag draped coffins are confined to the Military services proper.
now
Pesticides can harm farm workers in many different ways if the workers themselves do not take proper precautions. Pesticide applicators also need to take precautions to ensure they do not inadvertently harm other workers. Workers need to understand what pesticides can do to them and what protection equipment and methods are available to them. The US Environmental Protection Agency has established a set of rules to help protect all farm workers. See the related link below for more information.
Only capitalize the word federal when you are referring specifically to a federal government, e.g. the Federal Government of the US or of Australia, or when the word is used in the title of a proper noun, e.g. the Federal Bureau of Investigation.
The CIA stands for Central Intelligence Agency.
through training and setting proper goals
No, they are not proper nouns.
Regulates the amount of fuel to the engine to maintain the fuel/air ratio at the proper mixture
I suppose that depends on what is meant by "proper," but there is no reason to believe that they are not nutritious or healthy. They are raised without chemical pesticides, herbicides and fertilizers, and contain no additives or GMOs.
restores the vehicles electrical system to original operation and regulates proper voltage distrbution
Yes........i think
No, federal is a common noun unless it is used for a name or a title, for example the Federal Trade Commission or the movie 'Federal Protection' (2002).