LAC 33:III.1307. Degradation of Existing Quality Restricted

A. Emissions whose quality as of the effective date of these regulations is higher than the standards set forth in LAC 33:III.1321, Table 3 and LAC 33:III.1311.B shall be maintained at the higher quality unless it can be affirmatively demonstrated to the department that a change in quality is justifiable and will not be contrary to the guidelines as set forth by these regulations.