No other pleading or written allegation is allowed than the writ and answer; these are the pleadings in the case, and have the same effect, and are to be construed and may be amended in the same manner, as pleadings in a civil action; and the issues thereby joined must be tried, and the further proceedings thereon had, in the same manner as in a civil action.
§ 1459.No Further Pleading Allowed - Similarity to Civil Action
Chapter 26: Mandamus · Not amended since adoption on record · Last verified August 3, 2026
In one sentenceSection 1459 limits the pleadings in a mandamus case to the writ and the answer, treats those as having the same effect and amendment rules as pleadings in a civil action, and requires the issues to be tried the same way a civil action is tried.
Full Text of § 1459
Amendment History
R.L. 1910, § 4915.
Plain-English Summary
Section 1459 keeps a mandamus case procedurally lean. No pleading or written allegation is allowed beyond the writ itself and the answer to it - those two documents are the entire pleadings in the case.
They're construed and may be amended the same way as pleadings in an ordinary civil action, and once the issues are joined, the case is tried and proceeds the same way a civil action would.
Frequently Asked Questions
Can either side file additional pleadings beyond the writ and answer?
No - Section 1459 says no other pleading or written allegation is allowed.
Can the writ or answer be amended?
Yes, in the same manner as pleadings in a civil action.
How is a mandamus case tried once the issues are joined?
The same way as a civil action.
Source & verification. Section text is reproduced verbatim from
Title 12 of the Oklahoma Statutes, enacted by the Oklahoma Legislature.
Last verified August 3, 2026.
· Official source
Also known as: mandamus pleadings oklahomamandamus case tried as civil action