The suspension of CCT applies to blue and white collar work. Councils which are not reorganised will not be exempted.
Mr Lord wrote to Mr Baldry after he was contacted by Ipswich BC which raised the issue at the Association of District Councils conference in June.
David Ball, the council's leader, had successfully presented a motion calling for the deferral of CCT to be applied to reorganised councils in tranches four and five.
When the tendering break was announced at the end of March, then junior environment minister Robin Squire said the proposals only applied to councils in the first two tranches.
The ADC immediately sought to have the rule applied to the third tranche (LGC, 2 April).
Mr Squire's statement to parliament made it clear the exemptions would not apply to councils which were considered by the Local Government Commission after the date at which new services were subject to CCT.
But Mr Baldry used this same statement in support of his letter to Mr Lord.
'I attach a copy of the news release which accompanied Robin's announcement for Councillor Ball's information', Mr Baldry says.
'The exemption from CCT does, in fact, apply to reorganised authorities in all five tranches of the review programme and not just those in the first three tranches as had been Councillor Ball's understanding'.
Mr Baldry says in the letter the DoE is considering potential areas of uncertainty which may remain for some councils.