Article 49 of EU Directive 2010/63 covers National committees for the protection of animals used for scientific purposes:

1. Each Member State shall establish a national committee for the protection of animals used for scientific purposes. It shall advise the competent authorities and animal-welfare bodies on matters dealing with the acquisition, breeding, accommodation, care and use of animals in procedures and ensure sharing of best practice. 

2. The national committees referred to in paragraph 1 shall exchange information on the operation of animal-welfare bodies and project evaluation and share best practice within the Union.

The Directive's recital 48 states:

There is a need to ensure a coherent approach to project evaluation and review strategies at national level. Member States should establish national committees for the protection of animals used for scientific purposes to give advice to the competent authorities and animal-welfare bodies in order to promote the principles of replacement, reduction and refinement. A network of national committees should play a role in the exchange of best practice at the level of the Union.

Norway transposed the EU Directive, which came into force on 1 January 2013, by a new Regulation which came into force on 1 July 2015.
Two questions were raised in Parliament about this delay in 2018 (see the Norwegian version of this page).
The National Committee was established in 2018 but its first meeting was not until 10 April 2019.
Norway's National Committee has its own website.
Press release (in Norwegian) when the committee was founded.

The Swedish National Committee and its executive body, the Swedish 3Rs Center

The Danish National Committee, which is also the Board of the Danish 3R-Center

The EU Commission's overview of the National Committees.