(*2) In the event of an extension, the EU informs the other parties to the international agreements. The agreement defines the goods, services and processes associated with them. Any provision of goods or services legally put on the market before leaving the EU may be made available to consumers in the UK or in the EU Member States (Article 40-41). The agreement also provides for a transitional period, which will last until 31 December 2020 and can be extended by mutual agreement. During the transitional period, EU legislation will continue to apply to the UK (including participation in the European Economic Area, the internal market and the customs union) and the UK will continue to contribute to the EU budget, but the UK will not be represented in EU decision-making bodies. The transition period will give businesses time to adapt to the new situation and the new era, so that the British and European governments can negotiate a new trade agreement between the EU and the UK.  the day after the end of the period under Article 50, paragraph 3, of the EU Treaty, extended by the European Council in agreement with the United Kingdom, provided that the custodian of this agreement has received before that date the written communications of the Union and the United Kingdom on the conclusion of the necessary internal procedures; On an exceptional basis, the Union invites the United Kingdom to participate, in the context of the EU delegation, in meetings or meetings of these bodies, where the Union considers that the UK`s presence is necessary and is in the interests of the Union, particularly for the effective implementation of these agreements during the transitional period; this presence is only permitted if the participation of Member States is authorised by the existing agreements. 57 The United Kingdom has committed, in Article 2, paragraph 1, of the Protocol, to ensuring that the UK`s withdrawal from the EU does not lead to a reduction in rights, guarantees and equal opportunities in Northern Ireland, as stated in the « Rights, Guarantees and Equal Opportunity » chapter of the Belfast Agreement (Good Friday) of 1998. This obligation has an effect in national law under Article 5. The bill also provides that the obligation made in the United Kingdom under Article 2, paragraph 1, must be fully implemented, including a number of amendments to the Northern Ireland Act 1998: after an unprecedented vote on 4 December 2018, MEPs decided that the UK Government was not complying with Parliament because it refused to give Parliament full legal advice on the consequences of its proposed withdrawal terms.  The focus of the consultation was on the legal effect of the « backstop » agreement for Northern Ireland, the Republic of Ireland and the rest of the United Kingdom with regard to the customs border between the EU and the United Kingdom and its consequences on the Good Friday agreement which ended the unrest in Northern Ireland, including whether the UK would be assured, in accordance with the proposals, of being able to leave the EU in a practical sense.
« custody rights »: custody of children within the meaning of Article 2 of Regulation (EC) No. 2201/2003 (6), including agreement obtained through termination, legal protection or valid agreement. The EU air transport law, which was not applicable at Gibraltar Airport before the withdrawal agreement came into force, applies to Gibraltar Airport only from the date set by the Joint Committee. The Joint Committee takes the decision on this matter after the United Kingdom and Spain have indicated that they have reached a satisfactory agreement on the use of Gibraltar Airport.