# Council Regulation (EU) No 1273/2012 of 20 December 2012 on migration from the Schengen Information System (SIS 1+) to the second generation Schengen Information System (SIS II) (recast), Article 12: Substantive legal framework

Extent: E+W+S+N.I.

For the data loading phase of the migration referred to in the first subparagraph of Article 11(3), the provisions of Title IV of the Schengen Convention shall continue to apply to the SIS 1+.
As from the switchover of the first Member State from N.SIS to N.SIS II, as referred to in the second subparagraph of Article 11(3) of this Regulation, Regulation (EC) No 1987/2006 shall apply.
This Regulation shall continue to apply to the interim migration architecture during the entire migration as referred to in Article 11(3).

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Source: https://www.legislation.gov.uk/eur/2012/1273/article/12 (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-1273/article-12
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.