The complaint or pleading shall set forth with particularity the nature of the interest or lien of the United States. In actions or suits involving liens arising under the internal revenue laws, the complaint or pleading shall include the name and address of the taxpayer whose liability created the lien and, if a notice of the tax lien was filed, the identity of the internal revenue office which filed the notice, and the date and place such notice of lien was filed. In actions in the State courts service upon the United States shall be made by serving the process of the court with a copy of the complaint upon the United States attorney for the district in which the action is brought or upon an assistant United States attorney or clerical employee designated by the United States attorney in writing filed with the clerk of the court in which the action is brought and by sending copies of the process and complaint, by registered mail, or by certified mail, to the Attorney General of the United States at Washington, District of Columbia. In such actions the United States may appear and answer, plead or demur within sixty days after such service or such further time as the court may allow.

A judgment or decree in such action or suit shall have the same effect respecting the discharge of the property from the mortgage or other lien held by the United States as may be provided with respect to such matters by the local law of the place where the court is situated. However, an action to foreclose a mortgage or other lien, naming the United States as a party under this section, must seek judicial sale. A sale to satisfy a lien inferior to one of the United States shall be made subject to and without disturbing the lien of the United States, unless the United States consents that the property may be sold free of its lien and the proceeds divided as the parties may be entitled. Where a sale of real estate is made to satisfy a lien prior to that of the United States, the United States shall have one year from the date of sale within which to redeem, except that with respect to a lien arising under the internal revenue laws the period shall be 120 days or the period allowable for redemption under State law, whichever is longer, and in any case in which, under the provisions of section 505 of the Housing Act of 1950, as amended (12 U.S.C. 1701k), and subsection (d) of section 3720 of title 38 of the United States Code, the right to redeem does not arise, there shall be no right of redemption. In any case where the debt owing the United States is due, the United States may ask, by way of affirmative relief, for the foreclosure of its own lien and where property is sold to satisfy a first lien held by the United States, the United States may bid at the sale such sum, not exceeding the amount of its claim with expenses of sale, as may be directed by the head (or his delegate) of the department or agency of the United States which has charge of the administration of the laws in respect to which the claim of the United States arises. In any case where the United States is a bidder at the judicial sale, it may credit the amount determined to be due it against the amount it bids at such sales.

Whenever any person has a lien upon any real or personal property, duly recorded in the jurisdiction in which the property is located, and a junior lien, other than a tax lien, in favor of the United States attaches to such property, such person may make a written request to the officer charged with the administration of the laws in respect of which the lien of the United States arises, to have the same extinguished. If after appropriate investigation, it appears to such officer that the proceeds from the sale of the property would be insufficient to wholly or partly satisfy the lien of the United States, or that the claim of the United States has been satisfied or by lapse of time or otherwise has become unenforceable, such officer may issue a certificate releasing the property from such lien.