Williams and Force India have been re-admitted into the Formula One Teams' Association (FOTA) in a meeting at Monza today.
The two squads had had their membership of the teams' body suspended in May when they broke ranks with the rest of FOTA and entered the 2010 world championship before the FIA's initial deadline. The move came at the height of tensions between the FIA and FOTA over future regulations, and when the prospect of a breakaway series remained very real.
A resolution between the governing body and FOTA was subsequently reached, and today it was announced that Williams and Force India would rejoin the rest of the current field in the teams' group.
FOTA also reiterated that the door was open for 2010 entrants Team US F1, Manor and Campos to join the organisation. US F1 has already applied to become part of FOTA.
"FOTA re-affirmed that all teams competing in Formula 1 are able to join the association," said a statement. "FOTA therefore welcomes back into full membership both Williams and Force India.
"The Executive Committee also looks forward to welcoming the new entrants to join the association whilst they continue to prepare for next year's championship."
At the meeting, FOTA also resolved to begin discussions with Bernie Ecclestone over the future shape of F1 beyond 2012, when the deal agreed to avert a breakaway expires, and to continue its efforts to increase F1's appeal to fans.
"The FOTA Executive Committee looks forward to working with the FIA and Commercial Rights Holder to promote a healthy, dynamic and sustainable sport," said the statement. "To this end, FOTA intends to now enter into open discussion with the Commercial Rights Holder with the wish to confirm arrangements beyond 2012.
"Furthermore, FOTA will now arrange a seminar, open to representatives of the major stakeholders (including Media, Sponsors and Promoters), to discuss how working together we can develop the show creating a more attractive spectacle for the fans."