Louisiana Administrative Code
Title 43 - NATURAL RESOURCES
Part XXVII - State Lands
Subpart 1 - Land Information Mapping and Map Records System
Chapter 9 - Photo Laboratory Procedures
Section XXVII-905 - Photo Index

A. The contractor shall prepare a photo index for each scale and coloration (i.e., black and white or color) of aerial photography flown by stapling together the contact prints (or reduced size prints), trimmed to the image area. The prints shall be carefully matched so that the corresponding images overlap and all photo numbers are visible. This original composite of contact prints shall be photographically copied, reduced in scale, and reproduced in uniform size sheets not to exceed 42 inches high by 42 inches wide. The reduction of the photo index scale may be to any appropriate size, but in no case smaller than four times the scale of the contact print or 1" = 1 mile, whichever is the larger scale. The index shall contain the names of prominent geographic features for orientation purposes. Each index shall also include title information identifying the project, date and scale of the project, name of the contractor, date and scale of the aerial photography, type of camera and focal length of its lens, the scale of the photo indexes, and a north arrow. In the event two or more photo indexes are required at any one scale, a diagram will be drawn in each photo index's margin. Photo indexes shall be oriented to the north, and the title information should appear in the south or east margin of each index. A photo index negative, three mylar-based screen positives and three photographic double weight semi-matte paper copies will be required for each scale of aerial photography.