[Histonet] Denatured Alcohol

[Joe Nocito]

Greetings and Salutations Histoland,
    I have a question about denatured alcohol. I work in a government facility and absolute alcohol (200 proof) is still considered a controlled substance. This requires a monthly inventory by someone from another department.  Years ago (ok many, many years ago) I remember that 200 proof had an IRS sticker covering the cap.
    The alcohol we have is "denatured alcohol, 200 proof",  which according to the MSDS is cut with kerosene. There is no IRS sticker on the bottles.
Question #1- If the alcohol is cut with something other than ethanol, ( which usually it's cut with methanol) is it still 200 proof?
Question #2-  If it is "denatured", it is considered not suitable for drinking. If the substance is not suitable for drinking, then why would it be considered a controlled substance?
See my dilemma? We would like to get it removed from our "controlled" substance list, but we need a reliable source. The company (whom shall remain nameless because of my past history of inflaming vendors) was useless. I don't think the government accepts Wikipedia as an authoritative source. Thanks 

JTT