(a) in the definition of “GPA”, for “between certain parties to the World Trade Organisation  signed in Marrakesh on 15th April 1994 as amended before IP completion day” substitute  “signed at Marrakesh on 15th April 1994, as amended on or before the United Kingdom’s  accession”;  (b) after the definition of “GPA” insert—  (a) listed in Schedule 1A; or  (b) a member State of the EU;”.  (3) In regulation 51 (duty owed to economic operators)—  (a) in the heading, after “operators” insert “, including those from countries with whom the  EU has a relevant international agreement other than the GPA”;  (b) in paragraph (2), omit “Condition 1, Condition 2 or”;  (c) omit paragraphs (3), (3A) and (5).  (4) After regulation 51 insert—  “Duty owed to economic operators from GPA parties  51A. —(1) The duty owed in accordance with regulation 51(1) (duty owed to economic  operators, including those from countries with whom the EU has a relevant international  agreement other than the GPA) is a duty owed also to an economic operator from a GPA  party, but only where the agreement applies to the procurement concerned.  (2) For the purposes of paragraph (1), the GPA applies to a procurement if—  (a) the procurement may result in the award of a contract of any description; and  (b) at the relevant time—  (i) a GPA party has agreed with the United Kingdom that the GPA shall apply to  a contract of that description; and  (ii) the economic operator is from that GPA party.  (3) In this regulation, “relevant time” means the date on which the contracting authority  submitted a call for competition in respect of the contract to the UK e-notification service  or would have done so if it has been required by these Regulations to do so.”.  (5) After Schedule 1 (activities constituting works) insert—  “SCHEDULE 1A  PARTIES TO THE GPA  Regulation 2(1)  Armenia  Australia  Canada  European Union  Hong Kong, China  Iceland  Israel  Japan  Korea, Republic of  11 ““GPA party” means any country, state or separate customs territory that is— 