Article 12 1.

The unique operator identifiers referred to in Annex III, first paragraph, points (g) and (h), and the unique facility identifiers referred to in Annex III, first paragraph, point (i), shall comply with the standards referred to in Annex III, first paragraph, point (c), and second paragraph, or equivalent European or international standards, until the references of harmonised standards are published in the Official Journal of the European Union.