alt Hacker NewsStandardized plus the ability for companies to do their own test after they pass the standard one. So go get prescreened at test center then use that test to apply for jobs. Company either flys you in for in-person or sends you back to test center to do live remote interview in controlled environment.
It's been tried and failed: Sun Microsystems pushed certifications in the 90s. Pass the test on some technology, get the certification. Then they studied performance. The result? More certifications implied a worse employee. The reason was the top performing employees had no time to study for the exams, but the managers of the bottom performing employees were happy to send them off to training and testing. And then the certification fad came mostly to an end.