Mt. Baker-Snoqualmie National Forest (MBSNF) just issued a Forest Order, dated April 15, 2023, that requires "bear-resistant food storage" for any overnight use of the Forest.

Unless I'm reading something wrong, this impacts PCT hikers in sections I, J, and K of Washington.

Using mileages from the PCTA.org map with the 'National Forest Administrative Boundaries' layer on, the PCT is mostly in MBSNF from mile 2,331.5 to 2,407, and 2,445.5 to just south of 2,555. So, for thruhiker purposes, that's at least White Pass (mile 2,297.5) to Stehekin (iirc the shuttle stop is at about mile 2,575), which is 277.5 miles (446.6 km).

The announcement from MBSNF:

The Mt. Baker-Snoqualmie National Forest announced today that a food storage order will be signed and go into effect this Saturday, April 15. This order requires visitors to the Mt. Baker-Snoqualmie National Forest (MBSNF) to store food items in a “bear resistant manner” and to properly dispose of wildlife attractants. The food storage order is intended to reduce human/wildlife conflicts resulting from readily available food sources and other attractants.

Here's an official overview map of MBSNF that's higher quality than the photocopy in the Order.

Acceptable methods of overnight food storage that are relevant for thruhikers include:

  • Bear cans approved by the IGBC or the local Ranger District (this includes Bear Vaults);

  • Bear hangs, specifically defined in the Order as 10 feet up and 4 feet out;

  • Ursack Major and Ursack AllMitey;

  • Bear boxes.

(Source: Definition of "Acceptably stored" on page three of the above linked Order).

Thank you to u/rangertam for pointing this out in this comment  on the Weekly Trail Conditions thread .

Edit: To be clear, re the post title, it's actually more like ~200 miles of the PCT itself. The effective impact is at least 277.5 miles for thruhikers, however.