FY 2018 Per Diem Highlights GSA establishes the per diem rates for the lower 48 Continental United States (CONUS), which are the maximum allowances that federal employees are reimbursed for expenses incurred while on official travel.
Rice wine vinegar and rice vinegar are different names of the same thing. In order to make vinegar, acetic acid bacteria ferment ethanol, which would be rice wine in this case. Rice wine and rice cooking wine are different.
Since each vinegar has such a unique flavor, a substitute for rice vinegar can be different than a red wine vinegar substitute and can change the flavor of your dish.