There is a newer version of the Maryland Code
Maryland Environment Section 9-409
§ 9-409.
  The Secretary may authorize variances or exemptions from the rules and regulations issued in accordance with § 9-407 of this subtitle, under conditions and in a manner necessary and desirable. However, the variances or exemptions are permitted only under conditions and in a manner that is not less stringent than the conditions under, and the manner in which, variances and exemptions may be granted under the Federal Act.
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