Directly from the NSP website under Member Resources.

OEC6 is shipping!
The sixth edition of NSP’s flagship educational program, Outdoor Emergency Care (OEC) is now available. You can order the book on our publisher Jones & Bartlett Learning (JBL)’s website. NSP members’ cost for the book is $93.71 (this reflects a 25% discount). Ground shipping is free through the end of 2020. To receive the discount, enter the code NSPMEC2 in the Promotion Code field in the shopping cart. See below for more detailed information about ordering options for the text.

Beginning July 1, all NSP members and candidates taking the OEC course must be using the new 6th edition. OEC courses that begin and end after July 1 will teach and test to the 6th edition of OEC and are not required to take the 2020 Refresher Cycle A. If your OEC course was already in progress before the coronavirus pandemic but has not yet finished because of associated shutdowns, please complete all coursework and exams by September 1, 2020.

OEC6 purchasing options — NSP Member prices
Prices below reflect NSP members’ 25% discount
Printed book: $93.71
eBook: $47.21
Audio book: not available for individual purchase
Navigate course materials ONLY: $70.46

To receive the 25% discount, use discount code NSPMEC2 on the shopping cart screen. (Full list price of the printed book is $124.95; eBook is $62.95; Navigate course materials $93.95.)
Ground shipping is free through the end of 2020.