The consultation will begin with an examination of the current access framework to identify any problems that exist and, following this, will consider what solutions are necessary to resolve any identified problems.
Postcomm has asked postal operators, organisations representing mail users and postal watchdog Postwatch for their views on the current arrangement.
The consultation follows last year's strategy review in which Postcomm made a commitment to undertake a review of current access arrangements to consider whether the introduction of an access code could be an efficient way to solve any problems with the existing framework.
The review period is two months. Postcomm has requested responses by March 17 and will provide feedback by June this year.
Earlier this week, Postcomm announced it would simplify licensing procedures for non-universal service operators, allowing smaller postal and communication companies to gain a better foothold in the market.
The changes include a substantial reduction in application fees from £1,000 to £50 and no further obligation for licence holders to guarantee delivery of mail if a rival operator fails.