GPS Proliferation Means More Charts, More Revisions
The increasing number of GPS approaches is making those government approach plate publications so thick for some regions that they have become unwieldy.

The increasing number of GPS approaches is making those government approach plate publications so thick for some regions that they have become unwieldy. Therefore, the FAA has decided to split the volumes to cover smaller regions. Starting with the November 1 revision cycle, there will be four additional volumes of the terminal procedures publication added to the Northeast series, the South Central series and the Southwest series.