You would send to:

The congressman (or senator)
House (or Senate) Committee on XYZ
Washington, DC 20515 (20510 Senate)

Following is from the budget page of the FDA (fda.gov):

(i post the below because i feel like there is something really f'in fishy about needing $10.6 million to spend on food safety -- what will this involve, i wonder? eroding organic standards and trying to blame vegetables for foodborne illnesses? ugh. i just despair!

Strengthening Food Safety
+$10,664,000, + 15 FTE
More than 250 different foodborne illnesses are food safety threats. Based on CDC estimates, 76 million Americans become sick, more than 300,000 are hospitalized, and 5,000 die each year from foodborne illnesses. Recent outbreaks highlight the need for increased resources to strengthen food safety and enhance FDA’s ability to reduce and respond to foodborne outbreaks.

If FDA does not receive funding for this initiative, FDA will make limited progress on preventing and reducing foodborne illness. FDA will also have difficulty maintaining public confidence in the safety of fresh produce.

What activities will these funds support?

The Strengthening Food Safety Initiative funds four FDA components: the Center for Food Safety and Applied Nutrition (CFSAN), the Office of Regulatory Affairs (ORA), the National Center for Toxicological Research (NCTR), and Office of Crisis Management (OCM). These entities deliver FDA’s food safety and foodborne illness response.

CFSAN +$4,000,000

better methods to rapidly detect and attribute foodborne illness outbreaks
quicker intervention to reduce illnesses and deaths from contaminated food
faster and more thorough traceback (tracking contamination to its source)
training for state and local agencies on analyzing food safety data
hiring microbiologists to improve the safety fresh produce
ORA +$5,500,000

improve FDA’s capacity to determine the root cause of an outbreak
equip and strategically position traceback teams in produce-growing regions
training and equipment for state offices that respond to produce-related outbreaks
deploy an IT decision system to detect high risk imports of FDA-regulated products
NCTR +$500,000 & OCM +$644,000

new methods to detect foodborne pathogens, select agents, and toxins
geographic information system mapping for faster emergency response

I would send to the committee chairman to start out with. You could also send to individual committee members, although letters will probably be sorted according to topic (i.e. things having to do with organics will end up with one person, things haveing to do with forestry with another, etc.)

So, for this subcommittee --

Senator Patrick Leahy, Chairman
Senate Committee on Agriculture, Nutrition and Forestry
(Subcommittee on Nutrition and Food Assistance, Sustainable and Organic Agriculture, and General Legislation)
United States Senate
Washington, DC 20510

THe best case would be to get into contact with a staff member. I have had to a) write a letter b) get a form/topic letter back and then c) call and say that I wanted to speak to someone because my concerns were not addressed. This is much easier to do at the committee level than in a member's office where there is little hope of talking to a person as the staff would never get anything done if they took calls all day!

Leahy is actually a good person to start with as Vermont has a lot of organic/small farms, and those New Englanders take helath and nutrition pretty seriously.

Laura