Notices to Mariners (Efs)

The Etterretninger for sjøfarende (Efs) is published twice a month, and provides information on changes or defects in aids to navigation, discovery of new dangers and on shortcomings in Norwegian charts or publications, navigational warnings, gunnery exercises or other information of interest to mariners. In addition to temporary (T) and preliminary (P) notices in Norwegian waters.

Miscellaneous Notices to Mariners

Gunnery Exercises, Warnings and Miscellaneous Notices

Miscellaneous notices, warnings and gunnery exercises are published in the pdf edition of Efs  every 14 days. For vessels subject to registration, the Norwegian Hydrographic Service recommend that mariners read these notices.

Gunnery exercises, warnings and miscellaneous notices will not appear in the search function "find notices to mariners" within the web-site.

Rig List The Norwegian Mapping Authority removes the rig list from its services as from 1 August 2024

The rigg list has become an outdated service, and has been replaced with other services such as NAIS ( and the National Register of Aviation Obstacles. The Mapping Authority will therefore end the rig list service from and including 1 August 2024.

Rig list (pdf)

The rig list will not be updated after 30 June 2024.