Paragraph (a) is the stuff that applies generally, where paragraph (c) would append or modify (a). ORS 90.300(7)(c) seems to append carpet cleaning to the items covered in ORS 90.300(7)(a). So it appears they can charge for carpet cleaning regardless if its 'ordinary wear and tear' or not as long as the conditions 90.300(7)(c)(A) i - iii are met.

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