IPHC Zone Map Regulatory Areas
In case anyone has been looking for a map with IPHC Regulatory areas on it, here you go. I spent a few hours on the NOAA/NMFS web sites with zero success on maps, but thousands of pages on regulations and lawyer-ese documents. I got this one emailed to me from a source at IPHC.
If you are a GIS savvy person, the shape files can be found at:
Technical Boundary differences
The IPHC areas on the IPHC site use the Hay-Herbert Treaty of 1903 (54°40'N, east of Cape Muzon--as seen on Canadian Hydrographic Service charts) for the lower boundary between southeast Alaska and British Columbia. NOAA Fisheries uses the EEZ line drawn from the 1995 treaty (which basically splits Dixon Entrance between the US and Canada waters).
Attached is the 3A/2C and 2C/2B map for reference.
Source: Steve G. Lewis
NOAA FIsheries, Alaska Region