Act on natural areas in Oslo and nearby communities (Forest Act) No. 35 of 2009.

The purpose of the Act is to promote and facilitate outdoor recreation ensuring Marka's borders and preserve a natural and cultural heritage, as well as sustainability thereof. The geographical area Marka is composed by the following areas: Kjekstad Marka, Vard Åsmarka, Vestmarka Krokskogen, Bærumsmarka, North Marka, Lillomarka, Romeriksåsene, Gjellerås Marka, Østmarka and Sørmarka. Marka is an agricultural, natural and recreational area (LNF area) pursuing Act relative to planning and construction. In areas that are protected by the Environment Act for conservation purposes, the conservation or protection areas for drinking water shall be subject to restrictions following specific safety and planning decisions. Dispensations can only be granted if there is a legislative intent to the exemption of assessment of natural environment and may not apply to the requirement of development plans set by the Act relative to planning and construction and other rules. Municipality authorities supervise the provisions laid down in this Act and decides on the conditions present with minimal impact on the environment. Further provisions of the Act relative to planning and construction shall be implemented together with this Act.

Implemented by: Regulation No. 1176 on the Protection of Spinner outdoor urban area, Oslo. (2013-10-04)
Implemented by: Regulation No. 1175 on the Protection of Hauktjern outdoor urban area, Oslo. (2013-10-04)
Implemented by: Regulation No. 1174 on protection of Godbekken outdoor area, Oslo. (2013-10-04)
Implemented by: Regulation No. 1173 on protection of Skjennungsåsen outdoor area, Oslo. (2013-10-04)
Implemented by: Delegation No. 1189 of authority to the City of Oslo for 4 outdoor areas. (2014-09-17)
Amended by: Act amending Wildlife Act and Nature Conservation Act etc.(No. 9 of 2014). (2014-03-28)