What are the situations in which the Administration can dispense with the bidding process and in which it is inexigible, according to the Brazilian...

What are the situations in which the Administration can dispense with the bidding process and in which it is inexigible, according to the Brazilian legislation?


a) Acquisition of a preferred brand product of the Administration; hiring of a professional with notorious expertise.
b) War or serious disturbance of the order; hiring of a professional from the artistic sector acclaimed by specialized critics.
c) Acquisition of common nature products or small works; purchase of material from an exclusive supplier.
d) Acquisition of perishable products; hiring of services or purchase of computer equipment.
e) Sale of a portion of a property remaining from expropriation; hiring of specialized consulting services.