Exhibit 31.1




I, Terrence W. Norchi, certify that:


1.             I have reviewed this Amendment No. 1 to the Annual Report on Form 10-K/A of Arch Therapeutics, Inc.;


2.             Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;


December 29, 2021  
/s/ Terrence W. Norchi, MD   
Terrence W. Norchi, MD   
President and Chief Executive Officer   
(Principal Executive Officer)