Charles van Commenee, the new head coach of UKA, said last week that he too is happy for Chambers to represent GB in non-Olympic events like World Championships.
"Dwain has served his sentence, he is more than welcome back in the team," Van Commenee told BBC Sport.
"He's a very good athlete," Van Commenee added. "Everybody who serves their sentence is welcome.
"I'm fully aware of the restrictions given by the BOA and we'll live by that as well. If an athlete wants to challenge that, that's okay, and we'll live by the result."
After his positive test in 2003, Chambers admitted he had taken other banned substances to enhance his performance.
He also revealed to the BBC that he had started taking THG 18 months before he was eventually caught.
The revelation led to him being stripped of the 100m gold medal he won at the European Championship in 2002, and also cost him and his team-mates the gold they had won in the 4x100m relay.
Chambers challenged for a place in the British Olympic team for Beijing in 2008, winning the 100m at the GB trials, but the High Court refused his request for an injunction against his Olympic ban.
The BOA has been reluctant to welcome Chambers back into the fold, a stance vigorously defended by London 2012 chairman Sebastian Coe.
"I am clear cut on the Chambers case - I don't think there is room for drugs cheats in sport," said Coe prior to the Beijing Games.
"I do not think there is any lack of clarity about what the rules are - if you do that and you get caught, you get kicked out of the sport."
The BOA by-law which bans athletes who fail drugs test from the Olympics, barring mitigating circumstances, has been in place for 16 years.
But it is at odds with the position of track and field's governing body, the International Association of Athletics Federations (IAAF), which says athletes found guilty of doping can return to all competitions once they have served their bans.
Some athletes have successfully appealed against lifetime bans - the last being Olympic gold medallist Christine Ohuruogu.
The 400m runner was suspended for a year after missing three tests during an 18-month period.
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