40 CFR Subpart Q
Secondary Indium Subcategory
June 9, 2020
§
421.190
Applicability: Description of the secondary indium subcategory
§
421.191
Specialized definitions
§
§421.192-421.193
[Reserved]
§
421.194
Standards of performance for new sources
§
421.195
Pretreatment standards for existing sources
§
421.196
Pretreatment standards for new sources
§
421.197
[Reserved]