(Telecompaper) Further details of the European Commission's plans for reforming wholesale broadband access regulation have emerged in a draft document seen by Reuters. According to the report, national regulators would be required to take into account existing commercial agreements between operators when deciding whether to force them to allow competitors access to their networks. National regulators will also have to weigh up the range of retail choices available to users to ensure that regulation is not more of a burden than necessary on operators' decisions to invest, the document says. National regulators will be required to monitor the network investment decisions of operators and will have the power to sanction them if they deviate from their declared intentions without justification. The Commission will also seek to encourage operators to co-invest in shared roll-outs of FTTH by offering them lighter access rules in return. Operators adopting a wholesale-only model, whereby they sell access to their networks to other providers but do not offer consumers their own retail broadband packages, would benefit from lighter rules.