Can a sheet be challenged before presenting the offer?
Of course, a specifications can be challenged before presenting an offer in a public tender. And yes, it is more common than one would think. Basically, if you see something weird, unfair or that smells in favoritism in the specifications, you can raise your hand and say "h, this is not right." This is called a special hiring resource, but come on, that it is the right to formally complain if the specifications seem a joke in bad taste or simply do not comply with the rules of clean play.
This of challenging the specifications before offering is no recent invention, it is quite supported in most countries to avoid scams and ensure that everyone has a real opportunity. The idea is that the competition is real, without traps or marked letters. Eye, each country has its own rules and deadlines, but the equality and transparency is almost sacred in these issues.
If you dare to challenge, it is time to follow the legal path that marks the local law. For example, in Spain, this is regulated with Law 9/2017 on public sector contracts. There they tell you clear that the resource you have to present it to the contracting body and within the term that touches. And it is not worth complaining to complain: you have to explain well what is wrong and how that harms you and the rest of the bidders (that is, no foundation pamkets).
Anyway, my advice: look for a lawyer who knows the subject. It is not a matter of launching crazy because these processes can be everything but simple. The ideal is to review the specifications as soon as they leave, detect any brown as soon as possible and have everything documented in case you have to get serious with the administration.
Of course, I am not going to lie to you: challenging takes time and can be a mess, but if the sheet is crooked, it is the best way to defend your rights and force the process to be clean. So, if you see something suspicious, do not doubt it: this resource is to be used. Better to claim in time than lament later, right?
