Anti-Rust Paint or Rust Preventative Coating

Hello, We are having doubts to classify an anti-rust product, because we don´t know if it should be considered Paint or Coating (mainly because the VOC limits are very different) and with which Rule/Reference the limit should comply with. Can anyone please provide us a clear definition between anti-rust/anti-corrosive paint and rust preventative coating? Following the rules GC-03 and SCAQMD #1113 we have the following definitions: From GC-03 - Second Edition - January 7, 1997: "Anti-corrosive paint: coatings formulated and recommended for use in preventing the corrosion of ferrous metal substrates." From SCAQMD #1113 - January 1, 2004: "Rust Preventative Coatings are coatings formulated for use in preventing the corrosion of metal surfaces in residential and commercial situations." Thank you.