Original B/L = a negotiable document, ownership is transferred by handing over the original B/L. Is used, e.g. for LOC settlement, new business relationships as security for receipt of payment.
At least 1 original B/L must be submitted for release in the port of discharge
Telex release B/L = an original B/L is created for security, after receipt of payment a switch to telex release B/L can be requested, which is then used like a sea waybill for processing
Sea waybill = a non-negotiable document whose electronic form is sufficient for release in the port of discharge