Small pub companies have been granted an extension until the end of the year to get their new codes of practice in place.
MPs on the Business and Innovations and Skills Committee had given pubcos until July this year to have their updated codes - designed to show transparency in lease agreements with tenants - up and running.
And while major players including Punch Taverns and Enterprise Inns have had their codes approved by the BII others have struggled to hit the deadline.
Last week Daniel Thwaites became the latest company to have its code approved but other regional brewers, including St Austell, Adnams, Hook Norton, Camerons, Arkells and Harveys have yet to have theirs rubber stamped.
Jeremy Mitchell, director of marketing and communications at St Austell, said this the delay was down to ensuring the code was transparent and easy for tenants to understand
"We are committed to transparency in all aspects of it and we are very nearly there," he said.
And Jo Hyde, operations manager at Oxfordhsire brewer Hook Norton said its code was complete and the company was now waiting for feedback from the BII.
British Beer & Pub Association (BBPA) members are committed to updating and improving their codes following criticisms of the pubco business model from MPs on the committee. The trade group confirmed smaller companies have been granted an extension.
A BBPA spokesman said: "BBPA, BII and the Federation of Licensed Victuallers Association took note of the Select Committee's comments about the potential compliance costs to small businesses and their recommendation to ensure costs remain reasonable.
"As a consequence, small companies have a little bit more time. In reality this means seven companies that together own 464 pubs have until the end of the year."
Companies that are not members of the BBPA are not bound by the agreement to introduce a new code of practice. This represents around 12 per cent of the tenanted and leased sector and includes the following companies: Trust Inns, Wellington, Pubfolio, Country Estate Management and London Town.