(b) In accordance with the requirements for variances specified in Section 65906, the legislative body of the city or county may, by ordinance, authorize the board of zoning adjustment or zoning administrator to decide applications for variance from the terms of the zoning ordinance without a public hearing on the application.
That ordinance shall specify the kinds of variances which may be granted by the board of zoning adjustment or zoning administrator, and the extent of variation which the board of zoning adjustment or zoning administrator may allow.