The following rules apply for fishing in OFA’s area as of 01.01.26:
(These are found printed in Norwegian on all OFA fishing licenses.)

§1 FISHING PERMIT
All anglers over 18 years of age are required to present a fishing permit upon request from authorized inspectors. Anyone under 18 fishes for free in the Oslomarka area.

§2 GEAR AND METHODS
The fishing permit allows fishing with one rod from shore or ice in all OFA waters and rivers. In the Akerselva River, the Oslomarka fishing permit is valid from the outlet of Lake Maridalsvannet down to Øvre Foss. (To fish for salmon and sea trout in the lower section, a separate permit is required.)

See lists and fishing regulations on the website for selected waters where boat fishing, float tube fishing, or the use of three rods is allowed, as well as waters with maximum size limits. It is not permitted to leave fishing gear unattended. The fishing permit does not allow the use of trolling boards (oter), pike traps, jigging hooks, nets, or crayfish harvesting.

§3 CLOSED SEASON
Fishing is permitted year-round in all OFA waters and rivers, except in rivers/streams and around river mouths during the period 15 September – 15 November. During this time, the protected zone around large river mouths is 100 meters, while smaller ones are subject to discretion.

§4 CATCH LIMITS
The minimum size for trout is 25 cm. Minimum size limits do not apply in waters with dense trout populations (see tables marked with three blue fish symbols). In selected waters with maximum size limits (see list on the right), trout larger than 35 cm must be released. This applies only to those specific waters.

Anglers are encouraged to release pike larger than 70 cm and perch over 500 g.

Crayfish needs a seperate permit

Remember to wet your hands thoroughly in the water before handling fish that will be released.