Chris Heaton-Harris said he would prefer a negotiated settlement with the EU over the Northern Ireland Protocol.
However, he said the UK Government remains committed to progressing the Northern Ireland Protocol Bill, put forward by Liz Truss as Foreign Secretary.
Conservative former Northern Ireland secretary Theresa Villiers asked in the House of Commons: “The main barrier to the resumption of devolved powersharing government is of course the Northern Ireland Protocol.
“So will he undertake to push that legislation through as quickly as possible and use the Parliament Act to get it through if necessary?”
Mr Heaton-Harris replied: “We are committed to resolving the problems in the protocol, ideally through a negotiation, but, if not, through legislation so yes.”