MEETING BEFORE THE CALIFORNIA AIR RESOURCES BOARD COMMITTEE ON
                           VISIBILITY
                                
                         Meeting in re:
                                
             COLLOQUIUM ON VISIBILITY POLICY ISSUES
                                
                        El Rancho Hotel
                        Reception Center
                      West Sacramento, CA
                                
                         April 30, 1986
                           9:00 a.m.

                              INDEX

                                                             Page

Proceedings                                                     1

Opening Remarks by Chairman Kennedy                             1

Historical Background by Bill Sylte,
     ARB Chief Deputy Executive Officer                         5

     Question and Answer Session                               14

Visibility in California by Dr. John Trijonis                  16

     Question and Answer Session                               34

Regulatory Structure by Tony VanCuren,
     Standards Section, RD                                     39

CAA requirements for Class I areas by
     Rick Sugarek, EPA Region IX                               45

     Question and Answer Session                               61

Flight Research and Development by Phil Brady,
     Department of Defense                                     72

Forestry, Dick Harrel, USFS                                    95

     Question and Answer Session                              109

Industry, Peter Wilson, Southern California
     Edison                                                   110

     Question and Answer Session                              115

Agriculture, California Rice Research Board,
     by Mel Androus                                           119

     Question and Answer Session                              131

Economics of Visibility by Bob Rowe                           141

     Question and Answer Session                              164

Oregon's Visibility SIP by John Core, ODEQ                    168

Criteria for Setting Standards by Tony VanCuren
     Standards Section, RD                                    196

Panel discussion                                              198

Closing Remarks and discussion                                218

Adjournment                                                   222

Certificate of Reporter                                       223