Sentence Correction (SC) | Re: Though the law will require emissions testing of all diesel vehicles,

in C]

C. powered and therefore not subject to emissions-control standards as stringent as those for

1. don't we say ''subjected to something' ?

2. emission control standards as stringent as ( dont we mean here that emission control standards are appliied more stringently compared to rest of vehicles)


3. should there be a comma before 'and'

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