Cleveland Corporation owns and operates a scrap yard, including a small furnace used to recover aluminum. During an EPA inspection, Cleveland's president identified the furnace as a sweat furnace and provided furnace manufacturer's literature and a State operating permit also identifying the furnace as a sweat furnace. EPA issued an FOV to Cleveland for failure to comply with various NESHAP Subpart RRR requirements for sweat furnaces. At the conference with Cleveland held subsequent to the FOV, Cleveland provided further information indicating that the furnace meets the Subpart RRR definition of a Group 2 furnace. EPA informed Cleveland of this at the conference. Several days later Cleveland contacted EPA again, requesting to be considered a sweat furnace. Cleveland operates an afterburner on the furnace which now meets the Subpart RRR operating and monitoring requirements for a sweat furnace.