Mr. Bush will accept public financing in the general election.
The measure would restrict total spending and individual campaign contributions solely for candidates who accept public financing.
Mayor Koch has already said he would accept public financing.
The nominees of both parties are expected to accept public financing.
The board's rules will apply to those candidates for city office who decide to accept partial public financing of their campaigns starting next year.
After the conventions this summer, both parties' nominees are expected to accept public financing for the general election, about $75 million each.
Suggestions were made about the legality of accepting foreign financing.
So a college is trying to get the parent to accept as much financing in the financial aid package as possible.
The problem, moreover, reaches beyond the hazards of accepting corporate financing.
Although accepting private financing was legal, they said, it gave the appearance of a conflict of interest.