Colorado Revised Statutes Title 38. Property Real and Personal § 38-25-102. Federal liens--places of filing

(1)(a) Notices of liens, certificates, and other notices affecting federal tax liens or other federal liens must be filed in accordance with this article.

(b) Notices of liens upon real property for obligations payable to the United States and certificates and notices affecting the liens shall be recorded in the office of the county clerk and recorder of the county in which the real property subject to the liens is situated.

(a) If the person against whose interest the lien applies is a corporation, partnership, or limited liability company whose chief executive office is in this state, as these entities are defined in the internal revenue laws of the United States, in the office of the secretary of state;

(b) If the person against whose interest the lien applies is a trust that is not covered by paragraph (a) of this subsection (2), in the office of the secretary of state;

(c) If the person against whose interest the lien applies is the estate of a decedent, in the office of the secretary of state;

(d) In all other cases, where the person against whose interest the lien applies has his, her, or its principal residence in this state at the time of recording of the notice of lien, the notice of lien shall be recorded in the office of the secretary of state.