It’s official when the President signs off on it (pdf).

NOW, THEREFORE, I, BARACK OBAMA, President of the United States of America, by virtue of the authority vested in me by the Constitution and laws of the United States, do hereby proclaim September 20 through September 26, 2009, as National Farm Safety and Health Week. I call upon the people of the United States to join me in celebrating the vital contributions of farmers and ranchers to our Nation and in reflecting upon the importance of farm safety and health in communities across America.

The National Education Center for Agricultural Safety wants us to have a harvest full of safety and health.

The National Education Center for Agricultural Safety (NECAS) is dedicated to preventing illnesses, injuries, and deaths among farmers and ranchers, agricultural and horticultural workers, their families, and their employees. In 1997, we opened NECAS on the Northeast Iowa Community College Peosta Campus. NECAS is the only organization with hands-on farm equipment safety training center. The facility also houses classrooms and a library and resource center.

Our concern for safety in rural areas goes beyond farms and ranches. The need for our services spreads from citrus groves in the South to vineyards in the West. It covers cattle ranches in Wyoming, fisheries in Maine, and thousands of ventures in between.