The phrase "a document that states" is correct and usable in written English.
You can use it when referring to a specific document that contains information or declarations about a particular subject.
Example: "The report is a document that states the findings of the research conducted over the past year."
Alternatives: "a paper that outlines" or "a file that specifies".
At Michigan, host athletes are required to read and sign a document that states specifically how the recruits may be entertained.
The company had to complete a document that states whether it provides money services or not.
When students join my lab, I give them a document that states how many hours per week I expect them to work in the lab.
An effective approach to doing so, Stith continues, is to create an Individual Development Plan (IDP), a document that states specific goals and outlines specific means of achieving them.
Each barrel of industrial sewage is accompanied by a document that states the level of toxicity of the substances.
Last minute negotiations for the agreement were wrangled Saturday night, ending with a document that states both parties must act in "partnership, collegiality, collaboration, and, most importantly, responsibility to the people of Afghanistan".
We produced the longest platform in Democratic history, a document that stated the party's principles in broad terms that neither the most liberal nor the most conservative elected officials would denounce.
Lee then "refreshed his recollection," bringing up a document that stated the following: "It is a crisis of design.
On that day, almost two and a half years after President Abraham Lincoln signed the Emancipation Proclamation, Granger read general order No. 3, a document that stated that all remaining slaves were to be set free.
"Nobody's going to check," he'd said, and then gave me a document that stated that I was a graduate of the San Diego State University, a school in a city where I'd attended a different university.
Due to the opposition from Jeremi's detractors, he was not granted a hetman position, although after a full two days of debate on the subject he was granted a document that stated he had a "power equal to that of a hetman".
