X-Ray, CT, Nuclear Medicine Abbreviations - N 21 - 22 (of 22) •N-NTTAA•NWPA-NWPAA • NWPA Nuclear Waste Policy Act of 1982 • NWPAA Nuclear Waste Policy Amendments Act of 1987 21 - 22 (of 22) •N-NTTAA•NWPA-NWPAA If our house be on fire, without inquiring whether it was fired from within or without, we must try to extinguish it. - Thomas Jefferson |