Area source means any stationary source of hazardous air pollutants that is not a major source as defined in rule 567—22.100(455B).
Point source means any discernible, confined, and discrete conveyance, including but not limited to any pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, concentrated animal feeding operation, vessel, or other floating craft from which pollutants are or may be discharged. This term does not include return flows from irrigated agriculture.
Virtual source means a point from which radiation appears to originate.
Direct services means special education services provided by a special education teacher when the services are related to instruction, including cooperative teaching.
Indirect services means special education services provided by a special education teacher which include ongoing progress reviews; cooperative planning; consultation; demonstration teaching; modification and adaptation of the environment, curriculum, materials, or equipment; and direct contact with children with disabilities to monitor and observe.