New Jersey Administrative Code
Title 7 - ENVIRONMENTAL PROTECTION
Chapter 27B - SAMPLING AND ANALYTICAL PROCEDURES
Subchapter 2 - PROCEDURES FOR THE VISUAL DETERMINATION OF THE OPACITY (PER CENT) AND THE SHADE OR APPEARANCE (RINGELMANN NUMBER) OF EMISSIONS FROM SOURCES
Section 7:27B-2.5 - Required observation data

Data to be determined and reported for each observation must include the information required to complete the plume observation record (form AIR-14, Appendix 1) as well as information showing the sun's orientation to the observer's back and the plume characteristics when observing a plume containing visible water set forth in N.J.A.C. 7:27B-2.4(f).