the concept on market access for services and services suppliers is provided for by Article XVI of the General Agreement on Trade in Services (GATS): Article XVI: Market Access 1. With respect to market access through the modes of supply identified in Article I, each Member shall accord services and service suppliers of any other Member treatment no less favorable than that provided for under the terms, limitations and conditions agreed and specified in its Schedule 2. In sectors where market-access commitments are undertaken, the measures which a Member shall not maintain or adopt either on the basis of a regional subdivision or on the basis of its entire territory, unless otherwise specified in its Schedule, are defined as: (a) limitations on the number of service suppliers whether in the form of numerical quotas, monopolies, exclusive service suppliers or the requirements of an economic needs test; (b) limitations on the total value of service transactions or assets in the form of numerical quotas or the requirement of an economic needs test; (c) limitations on the total number of service operations or on the total quantity of service output expressed in terms of designated numerical units in the form of quotas or the requirement of an economic needs test; (d) limitations on the total number of natural persons that may be employed in a particular service sector or that a service supplier may employ and who are necessary for, and directly related to, the supply of a specific service in the form of numerical quotas or the requirement of an economic needs test; (e) measures which restrict or require specific types of legal entity or joint venture through which a service supplier may supply a service; and (f) limitations on the participation of foreign capital in terms of maximum percentage limit on foreign shareholding or the total value of individual or aggregate foreign investment.When a WTO Member undertakes any commitment in a service sector or sub-sector, it is obliged to specify for each of the modes of supply (cross-border supply, consumption abroad, commercial presence, and presence of natural persons) what restrictions it opts to maintain regarding market access. All market access restrictions specified in a Member's Schedule of Commitments must fall into one of the six categories provided for in GATS Article XVI:2, which include four types of quantitative restriction, limitations on types of legal entity, and limitations on foreign equity