Electronic 246 [ N o . 21 of 2 0 0 9 Acceptance 20. Communications and Transactions A public body that, pursuant to any law— of electronic filing and issuing of documents (a) accepts the filing of documents, or requires that documents be created or retained; (b) issues any permit, licence or approval; or (c) provides for a manner of payment; may, notwithstanding anything to the contrary in such l a w — (i) accept the filing of the documents, or the creation or retention of such documents in the form of data messages; (ii) issue the permit, licence orapproval in the form of a data message; or (iii) make or receive payment in electronic form or by electronic means. Requirements specified 2 1 . (1) Where a public body performs any of the functions r e f e r r e d to in section twenty, such body m a y specify, in a daily newspaper of general circulation in Z a m b i a — (a) the manner and format in which data messages shall- be filed, created, retained or issued; (b) in cases where a data message has to be signed, the type of electronic signature required; (c) the manner and format in which electronic signature shall be attached t o , incorporated in or otherwise associated with, a data message; (d) t h e identity of, or criteria that shall be m e t by, any authentication service provider used by the person filing a d a t a m e s s a g e or t h a t t h e a u t h e n t i c a t i o n s e r v i c e provider shall be a preferred authentication service provider; (e) the appropriate control processes and procedures to ensure adequate integrity, security and confidentiality o f data m e s s a g e s or payments; and (f) any other requirements for data messages or payments. (2) For the purposes of paragraph (d) of subsection (1), the Zambia Postal Services Corporation is an authentication service provider.