Updates record

Refined content.

Expanded advice. (Formerly If you are lost).

Includes newer treatment systems.

Includes expanded information on range of pollutants.

Combined and revised (formerly Mobile phone navigation and Handheld GPS navigation).

Combined and revised (formerly Map apps and digital maps).

New Fire Danger Ratings.

New Fire Danger Ratings.

Clarified use of pack waist and sternum straps.

All revised.