The phrase "supporting documentation for" is correct and usable in written English.
It is often used to refer to documents that add evidence to support a claim or an argument. For example, "The lawyer submitted supporting documentation for his client's case in order to prove their innocence."
During the fifteen months since that filing, there has been a massive accumulation of documents that include testimony, rebuttals, and supporting documentation for various contentions.
Each individual trial page lists the supporting documentation for that trial.
The Egencia flight selection pages are the traveler's supporting documentation for an exception to the regulations.
Supporting documentation for that expectation has been piling up over his more than two years in office.
In addition to missing checks, work contracts and supporting documentation for vendors, some payments are missing purchase orders and others are missing vendor numbers.
The Atlanta Journal-Constitution repeatedly requested supporting documentation for the poll results but never received any, said James A. Mallory, senior managing editor.
Supporting documentations for your tax returns includes not only your forms W-2 and 1099 but also bills, credit card and other receipts, invoices, mileage logs, canceled, imaged or substitute checks, proofs of payment, and any other records to support deductions or credits you claim on your return.
Get supporting documentation from your doctor.
She adds supporting documentation, checks for errors, kicks out exceptions, and adds validated information to the official market repository.
Only 52% of surveyed benchmarking studies share supporting documentation helpful for a user when installing and running a benchmarked tool (see Table 3).
"Without pre-empting a final decision about the project, the department expects that it will take six to eight weeks to prepare its advice and the supporting documentation, and for the minister to reconsider his final decision".
