18.4  All National Federations  shall take appropriate action to enforce compliance with the Code , International Standards , and these Anti -Doping Rules by  inter alia:    (i) conducting Testing only under the document ed authority of UWW  and us ing their National Anti -Doping Organization or other Sample collection authority to collect Samples  in compliance with the International Standard for Testing and Investigations ;   (ii) recognizing the authority of the National Anti -Doping Organization in their country in accordance with Article 5.2.1 of the Code and assist ing as appropriate with the N ational Anti-Doping Organization’s implementation of the national Testing program for their sport;   (iii) analyzing all Samples  collected using a WADA- accredited or WADA- approved laboratory in accordance with Article 6.1; and   (iv) ensuring that any national level anti -doping rule violation cases  discovered by National Federations  are adjudicated  by an Operationally Independent  hearing panel in accordance with Article 8.1 and the International Standard for Results Management .