No. State purchasing law requires that you get the lowest and best offer. If you have firm evidence that the company with the lowest price is from an unreliable vendor, you may not have to purchase from that company. Call Procurement Services at 915-7448 to confirm whether your reason for not going with the lowest offer is sufficient.
The lowest/best rule is also a reason to document problems that you have with a vendor. If you document the issues, then you may be able to avoid doing business in the future with a vendor who sells shoddy materials or provides poor service.
Have a question about applying the purchasing rules? Contact Procurement Services at 915-7448 before you make a purchase or enter a contract.