The Sullivan County Commission has approved a one-year moratorium on county rezonings within one-fourth of a mile of the the South Fork of the Holston River. But, there is one exception, the moratorium approval Thursday does not including land around South Holston Lake out of which the South Fork of the Holston flows. The commission also agreed to amend the TIF or tax-increment financing for the Stonegate Plaza redevelopment in west Kingsport through the Kingsport Housing and Redevelopment Authority.