The Nordic Payments Council have published the first versions of the NPC Implementation Guidelines. These documents set out are the NPC directions for implementing the interbank credit transfer ISO 20022 XML message standards and recommendations for the customer-to-bank and bank-to-customer XML message standards
There are two Implementation Guidelines and one recommendation for customer reporting for each payments scheme.
The Implementation Guidelines for the NPC Credit Transfer Scheme are found here:
The Implementation Guidelines for the NPC Instant Credit Transfer Scheme are found here: