The move by Leonard Peach comes after pressure from MPs who said masons should be forced to declare their membership of the secret society.
Sir Leonard said he would expect anyone applying to join a non-departmental public body to declare any possible conflict of interest and explain whether it was in fact a handicap. That would include freemasons, he told the commons select committee on public administration.
But Labour MP Melanie Johnson said those rules were far too vague. 'There's an area of real public concern. It appears to be left very open in an area in which much more prescription would be helpful to everybody.'