The legislation that regulates the Assay Office activity as well as the market for articles and precious metal watches is the following:

  • Decree Order no. 333-B/2017, of November 3, Decree Order that regulates the New Legal Regime of Jewelery and Assay Offices, approved by Decree-Law no. 120/2017, of September 15.
  • Decree order no. 120/2017, of 15 September, Changes the legal regime of jewelery and assay offices, approved by Law no. 98/2015, of August 18.
  • Law no. 98/2015, of 18 August, approves the legal regime of jewelery and assay offices and revokes the Decree-Laws nos 391/79, of 20 September, 57/98, of 16 March, and 171/99, of May 19.
  • Decree order no. 109/2015, of 21 April, Regulates and fixes the fees concerning the application of the Kimberley Process certification scheme for the international trade in rough diamonds.
  • Law n.º 5/2015, of 15 de January - ensures the execution of the Council Regulation (EC) No 2368/2002 of 20 December 2002 implementing the Kimberley Process certification scheme for the international trade in rough diamonds.
  • Regulation (EC) no. 764/2008 of the European Parliament and of the Council of 9 July 2008 - Laying down procedures relating to the application of certain national technical rules to products lawfully marketed in another Member State and repealing Decision no. 3052/95/EC.
  • Decree no. 2/2006 of 3 January - Approving amendments to the Convention on the Control and Marking of Articles of Precious Metals.
  • Decree-Law no. 75/2004 of 27 March - Abolition of the provision of security established for the activities of official evaluator and tester refiner in the Assay Offices Regulation.
  • Decree-Law no. 171/99 of 19 May - Amendments to Assay Offices Regulation regarding the activity of surveillance and procedures inquiries.
  • Decree-Law no. 57/98 of 16 March - Amendments to Assay Offices Regulation.
  • Decree-Law no. 35/91 of 18 January - Establishes the termination of the obligation to mark the base metal watches for personal use.
  • Statement issued by the Presidency of the Council of Ministers, correction to the Decree Order no. 477-A/90, Decree no. 201 of 31 August, 1st Series 3rd Supplement.
  • Decree Order no. 477-A/90 of 27 of June - Establishes the values for charges, securities, fees, permits and penalties foreseen in the Assay Offices Regulation.
  • Decree Order of 29 November 1989 - Establishes the weight comprised by the exemption under Decree-Law no. 384/89 (silver equal or inferior to 1 g).
  • Decree-Law no. 384/89 - Stipulates the exemption of Assay Office intervention on silver articles.
  • Decree no. 56/82, of 29 of April - Regulation of the Convention on Control and Marking of Precious Metal Articles.
  • Decree-Law no. 391/79, of 20 of September - Assay Offices Regulation.
  • Mutual Recognition Regulation - Information to Economic Operators.