6 NAUTICAL CHAKT MANUAL 



NEW EDITION 



A New Edition is a printing of an existing chart which contains changes of such impor- 

 tance to navigation that all previous printings are made obsolete. It includes all chart 

 corrections published in the Notice to Mariners and all other corrections which were too 

 extensive to be applied to the chart by hand and which are not ordinarily published in the 

 Notice to Mariners. The date of the New Edition replaces all dates in the lower left-hand 

 margin, thus: 



2nd Ed., May 13/63 



A New Edition may also be a printing of an existing chart containing an unreasonably 

 large number of non-critical hand corrections which in the past would have been a New Print 

 that canceled all prior prints in the agents' hands. Ordinarily this designation is made at 

 the time of forwarding the Drawing to the Reproduction Division. However, if an additional 

 number of corrections should subsequently be received which justifies changing a New Print 

 drawing in Reproduction to a New Edition, this may be done up until the preliminary aid check 

 is made. 



NEW PRINT I 



When changes or corrections of a minor character are made to a printing, the issue becomes 

 a New Print. A New Print includes all changes published in the Notice to Mariners since the 

 preceding issue of the chart. 



The date of a New Print is added to the edition date at the lower left-hand corner of the 

 chart. It replaces any print date already charted, thus: 



1st Ed., Sept. 5/60; Revised 1/14/63 



Occasionally, a chart sent to reproduction as a New Print must be recalled for application 

 of newly acquired critical information that requires it to be reclassified as a New Edition. 



REPRINT 



When the supply of a chart approaches exhaustion and unimportant or no changes are 

 indicated on the Standard or Aid Proof, a Reprint is ordered. The issue is an exact duplicate 

 of the current issue with no changes in printing or publication dates. 



TIDE-OVER OR EMERGENCY RUN 



When an unusual or unforeseen demand for a chart necessitates a printing before exten- 

 sive revisions in work can be applied to the printing plates, the current chart is reprinted as 

 above and referred to as a Tide-Over. Should it be necessary to make any corrections at this 

 time, the Tide-Over would be a New Print, or, if warranted, a New Edition. 



