One could could argue about cost, and the the number of boxers and tests it would take, but surely the top, let's say, 50 boxers in each division should be subject to "biological passport " testing? Let's not forget, boxing is not just a sport, but lives are at stake.
Problem with just having the top 50 boxers is...rankings change. Then you also have a number of different rankings, then a number of different belts with different rankings. Changes in the drug testing are not close IMO for boxing. But I'm all for all year round random testing, the threat alone of being randomly tested in and out of training is enough to deter individuals.
So who are you going to get to pay for it? The boxers? What's their incentive if most out of that top 50 are barely making enough, if that, to keep boxing as their only job. The promoters? Same issue with guys who don't make enough to make it worth while. What happens if a promoter is from east bum**** stumbles across a guy who is regional level so he gets ranked in the top 50 barely. I suppose that would make it the commissions job then. So which commission is going to take the lead? And how will they get other commissions to comply? Texas has shown itself more than willing to tell the others to **** off if they want to make a fight(Pacquiao-Margarito). Mexico is willing to allow damn near any Boxer fight if they like them (Margarito-Garcia). And who's standards are going to determine if a fighter is dirty? Do they all get their own separate standards? What stops say Luxemborg, or Delaware, or any other nobody commission from dropping their standards to clownish levels to attract fights? And we still haven't figured out how you are going to pay for this? Also the rankings, who's rankings? Ask most boxing journalist to rank fighters in the division 1-50 and most likely you won't get a full list. And what about the border rankings? What happens if a guy is ranked number 50, loses and now is number 53? Does that mean his biological passport is suspended until he gets back into the top 50? It sounds like a great idea, but there are too many barriers. Best you can hope for is a promoter unification eventually which would dump a large number of fighters within a single organization and that organization taking steps to implement testing. Becuase as is, it would be a lot of passing the bill onto another party as they can't afford it or they don't see a benefit from their end.
Dude boxing cant even get fighters in the ring to fight eachother. How do you gonna expect them to implement something like this?