Regulations for Bid Bond, Guarantee Bond and Other Guarantees Article 33-3
The supplier providing joint and several guarantee referred to in Articles 33 and 33-1 shall be limited to one that is by law eligible for providing guarantee, that does not participate in tendering, and that does not fall under the circumstances set out in paragraph 1 of Article 103 of the Act, by which it is prohibited from participating in tendering, or being awarded or sub-contracted.