President Jack Pringle will be extremely disappointed by the move after he had hoped to instigate measures such as an Ombudsman.
He had planned to launch a Regulatory Reform Order - which would have altered the 1997 Architects Act - and pare back much of the work of the board.
The Order would have added a clause to the Act that insisted hat it should be 'prudent and economical'.
But ARB chair Humphrey Lloyd has rejected the proposals, insisting that any changes would simply add to the cost born by the profession.
In an open letter made public this morning, Lloyd insists that the changes 'would not in practice change anything as that is already in the board's statutory duty'.
In addition it says: 'While the Architects Act is a matter for parliament, not the ARB itself, the board nevertheless has observations on the changes proposed by the RIBA.
'The board considers that all registered architects should be aware of the proposals, not least because further expense is likely to fall on them as a result of the RIBA's proposed reforms,' his letter adds.