The Global Forum for the Harmonization of Vehicle Regulations is a working group (WP.29) of the Sustainable Transport Division of the United Nations Economic Commission for Europe (UN-EEC). Its mission is to manage the multilateral agreements signed in 1958, 1997 and 1998 on technical requirements relating to the construction, registration of bicycle vehicles and their regular technical inspection and to work within the framework of these three agreements to develop and amend Un regulations, UN global technical regulations and UN regulations, a kind of vehicle regulation. From 2015[update], 135 UN regulations were attached to the 1958 agreement; most prescriptions relate to a single component of the vehicle or a single vehicle technology. This results in a sub-list of rules for passenger cars (heavy vehicles, motorcycles, etc.) may be subject to derogatory provisions. The first signatories to the 1958 agreement included Italy (28 March), the Netherlands (30 March), Germany (19), France (26), Hungary (30 June), Sweden and Belgium. Initially, the agreement only allowed the participation of the ECEC member countries, but in 1995 the agreement was revised to allow the participation of non-MEMBERS of the ERC. Current participants include the European Union and its member countries, as well as non-EEC-UN countries such as Norway, Russia, Ukraine, Croatia, Serbia, Belarus, Kazakhstan, Turkey, Azerbaijan and Tunisia, and even remote regions such as South Africa, Australia, New Zealand, Japan, South Korea, Thailand and Malaysia. The core of the Forum`s work is based on the «1958 Agreement» officially titled «Agreement on the Adoption of Uniform Technical Rules for Wheeled Vehicles, equipment and parts that can be mounted and/or used on wheeled vehicles and the conditions for mutual recognition of permits issued on the basis of these requirements» (E/ECE/TRANS/505/Rev.2, amended on 16 October 1995). It will be a legal framework in which participating countries (contracting parties) agree on a common set of technical requirements and protocols for the reception of vehicles and components. These were previously referred to as «EEC-UN regulations» or, less formally, «EEC regulations» with regard to the Economic Commission for Europe. However, since many non-European countries are now parties to the 1958 agreement, the regulations officially refer to them as «UN regulations».   In accordance with the principle of mutual recognition set out in the agreement, the type receptions of each party are recognized by all other contracting parties.
The most notable non-signature of the 1958 agreement was that of the United States, which had its own federal motor vehicle safety standards and did not recognize UN-type receptions. However, both the United States and Canada are parties to the 1998 agreement. Vehicles and components of the United Nations specification that do not also comply with U.S. rules cannot therefore be imported into the United States without significant modifications. Canada has its own Canada Motor Vehicle Safety Standards, which roughly resemble the U.S. FMVSS, but Canada also accepts UN-compliant headlights and bumpers. The forthwhile comprehensive economic and trade agreement between Canada and the European Union could prompt Canada to recognize more UN rules as acceptable alternatives to Canadian rules.  Canada currently applies 14 of the 17 main EEC standards as authorized alternatives: exceptions for motorcycle controls and displays, motorcycle mirrors and electronic control of the stability of passenger cars. [Citation required] These remaining three groups will be authorized in Canada until the trade agreement is ratified. [Citation required] Most countries, even if they do not formally participate in the 1958 agreement, recognize the provisions of the United Nations and reflect the content of UN regulations in their own national requirements, or authorize the importation, registration and