Chapter 9. National Weather Service 15 U.S. Code §312. Employees 15 U.S. Code §313. Duties of Secretary of Commerce 15 U.S. Code §313a. Establishment of meteorological observation stations in the Arctic region 15 U.S. Code §313b. Institute for Aviation Weather Prediction 15 U.S. Code §313c. Authorized activities of the National Oceanic and Atmospheric Administration 15 U.S. Code §313d. NIDIS program 15 U.S. Code §315. Changes or assignment to duty 15 U.S. Code §317. Appropriations and estimates 15 U.S. Code §318. Weather signals on mail cars 15 U.S. Code §322. Odd jobs for part-time employees 15 U.S. Code §325. Authority for certain functions and activities 15 U.S. Code §326. Maintenance of printing office in Washington, D.C. 15 U.S. Code §327. Employees for conduct of meteorological investigations in Arctic region; appointment and compensation; extra compensation to other Government employees for taking observations 15 U.S. Code §328. Transfer from other Government Departments of surplus equipment and supplies for Arctic stations