9121 HYDROGRAPHIC MANUAL PaGE 810 



9121. Preparation of Report 



The manner in which the report is prepared is important. A new survey usually 

 necessitates a number of corrections and changes in the Coast Pdot, and in such case 

 the report should be prepared in the same manner as the Supplements are, giving 

 references to the page and line numbers (see 915). It is only necessary to supply the 

 new data, and to indicate the page, paragraph, and line affected; this avoids recopying 

 a considerable part of the text that does not require change. 



Where the text of the Pilot is correct and adequate, the report should consist of a 

 mere statement to that effect, with an exact reference to that part of the Pilot referred 

 to. "Where many short changes are to be made, as in names or depths, they should 

 be shown in the margins of pages cut from the Pilot, with leaders or arrows indicating 

 the parts affected. Wliere changes are extensive and include much new information, 

 pages may be cut from a Pilot and bound together with sheets of blank paper. The 

 changes and the new information can then be typed on the blank sheets and referenced 

 to the printed text on the opposite page. 



The report should be submitted in such form that one copy of it can be cut and used 

 in the Coast Pilot Section without copying. The duplicate copy is filed until it is 

 needed for revision or manuscript. 



The person preparing a coast pilot report should be familiar with 916, where the 

 material desired for Coast Pilot is defined. 



9122. Landmarks for Charts 



Form 567, Landmarks for Charts, should be submitted in duplicate. The du- 

 plicate copy should be marked, "Coast Pilot Section," and notations should be made 

 on it to show the relative prominence of each landmark, the directions from which each 

 is visible or obscured, and how the landmarks affect the Coast Pilot. (See 8534 and 

 916, Landmarks.) 



9123. Coast Pilot Copies of Correspondence 



When correspondence from the field includes information of value to the Coast 

 Pilot Section, an additional copy should be forwarded, clearly marked "For Coast 

 Pilot Section." 



913. Preparation of a New Edition 



The various steps necessary in preparing a new edition of a Coast Pilot are described 

 in 9131 to 9139 inclusive. 



9131. Preparation in Office for a Field Inspection 



After the decision has been made that a new edition of a Coast Pilot is required, 

 it must first be determined what parts, if any, of the region described in the Pilot need 

 to be field inspected by the reviser. This depends on the adequacy of the available 

 information and on the character of the region. Such a decision must be made for 

 each new edition prepared. 



If a field inspection is required, all available information applying to the current 

 edition of the Pilot must be examined, and the part that needs consideration or verifi- 

 cation in the field assembled for entry in the Field Record Books. During the period 

 of preparation for a field inspection, the reviser should thoroughly familiarize himself 



