PSPC provides the platform, but the onus is really on the client to confirm that they received the services for which the TBIPS was set up and a task authorization was issued.
PSPC doesn't necessarily know. We don't get involved in the client's day-to-day activities. It's really up to the client to confirm that the work is done and then make the payment.
It's the client's responsibility to review everything set out in the project's technical specs.