REGULATION No 5/2002 of the President of the National Bank of Poland. of 6 th May on the method of numbering bank accounts operated by banks

Transcription

1 REGULATION No 5/2002 of the President of the National Bank of Poland of 6 th May 2002 on the method of numbering bank accounts operated by banks Pursuant to the Banking Act of 29 th August 1997 (Journal of Laws No 140, item 939, of 1998: No 160, item 1063 and No 162, item 1118, of 1999: No 11, item 95 and No 40, item 399, of 2000: No 93 item 1027, No 94 item 1037, No 114, item. 1191, No 116, item 1216, No 119, item 1252 and No 122, item 1316 and of 2001: No 8, item 64, No 100, item 1084, No 111, item 1195, No 130, item 1450 and 1452) and in particular Art. 68 s ubpara. 4 thereof, the following has been resolved: 1. Banks shall number operated bank accounts, marking them with the following identifiers: 1) Bank Account Number, hereinafter referred to as "NRB", if bank account is used for domestic settlements, 2) International Bank Account Number, hereinafter referred to as "IBAN", if bank account is used for cross-border settlements. 2. NRB shall consist of three parts and shall include 26 characters, of which: 1) first two characters present 2-digit check number, 2) eight consecutive characters present 8-digit code of a bank branch, which operates a given bank account, 3) last sixteen characters present 16-digit account number in the bank branch operating bank account. 3. IBAN shall consist of four parts and shall include 28 characters, from which: 1) first two characters present two-letter Poland code ("PL"), 2) two consecutive characters present 2-digit check number, 3) eight consecutive characters present 8-digit code of a bank branch, which operates a given bank account, 4) last sixteen characters present 16-digit account number in the bank branch operating bank account Check numbers, referred to in 2 subpara. 1 and in 3 subpara. 2, shall be calculated by bank branches operating bank accounts. 2. Check number calculation method for NRB and for IBAN is specified in the annex No 1 to the regulation. 5. Bank branch codes, referred to in 2 subpara. 2 and in 3 subpara. 3, shall be conferred by the National Bank of Poland following the principles laid down in separate regulations.

2 6. Account numbers, referred to in 2 subpara. 3 and in 3 subpara. 4, identifying bank accounts operated by bank branches, shall be conferred by those bank branches To identify bank accounts in domestic settlements the following notations for RNB shall be used: 1) in the electronic data medium, NRB shall be recorded in a single sequence of 26 digits, without any separators or spaces, 2) in the paper form, NRB check number shall be separated from the other characters by space. The other characters shall be structured in groups of 4 characters, separated by spaces, subject to para The spaces, as referred to in the para. 1 subpara. 2, shall not be introduced if each character of NRB is written down (either manually or by typing) in a separated blank of credit transfer order/ cash in-payment form, consistent with a model provided by separate regulations and a standard used. 8. To identify bank account in cross-border settlements, the following notations for IBAN shall be used: 1) in the electronic data medium, IBAN shall be recorded in a sequence of 28 digits, without any separators or spaces, 2) in the paper form, IBAN shall be recorded in a form of 28 characters and shall be structured in groups of 4 characters separated by spaces Check number validation, as referred to in 2 subpara. 1 and in 3 subpara 2, shall be effected by banks participating in domestic or cross-border settlements respectively. 2. Check number validation method for NRB and for IBAN is specified in the annex No 2 to the regulation. 10. Until 31 December 2003 banks shall: 1) be allowed to mark bank accounts in the way used before the present regulation has entered into force, 2) mark with NRB or IBAN the bank accounts which have not so far been thus marked To identify bank account in domestic settlements the following methods shall be used: 1) until 30 June 2004 either NRB or the number conferred in the way used before the present regulation has entered into force, 2) from 1 July NRB exclusively. 2. To identify bank account in cross-border settlements the following methods shall be used: 1) until 30 June 2004 r - IBAN or number conferred in the way used before the present regulation has entered into force, 2) from 1 July IBAN exclusively. 12. The present Regulation shall come into force on 1 st July 2002.

3 ANNEX No 1 The method of check number calculation for NRB or IBAN 1. Check number calculation, used in conferring NRB or IBAN, may be performed following one of two equivalent methods: 1) simplified method, 2) polynomial method. 2.: The following simplified method is used to calculate the check number : 1) the account number is added on the right to the code of an bank branch and all spaces are removed, which results in the following sequence: AAAAAAAABBBBBBBBBBBBBBBB, AAAAAAAA 8-digit bank branch code, BBBBBBBBBBBBBBBB 16-digit account number, 2) 2-letter Poland code (PL) and two zeros (00) are added on the right to the sequence as referred to in the subpara. 1: AAAAAAAABBBBBBBBBBBBBBBBPL00, 3) in the received sequence, letters PL are changed into numerical characters by converting them into their decimal values of ASCII code, i.e. P=25, L=21, which results in a 30-digit number: AAAAAAAABBBBBBBBBBBBBBBB252100, 4) the received 30-digit number is divided by 97 and the remainder of this division, called subsequently NN, is calculated, 5) the check number CC is calculated by subtracting NN from 98: CC=98-NN, If the result is less than 10, it is preceded by zero. 3. The following polynominal method is used to calculate the check number: 1) the structure of weight, presented in the table below, which is assigned to consecutive digits of the sequence made in the way specified in 2 point 1, 2 and 3, is created Table. Structure of weight for calculating check number using the polynomial method i W i Z i A A A A A A A A B B B B B B B i W i Z i B B B B B B B B B Where: i weight position,

4 W i weight value, Z i digit on i-th position, 2) The check number is then calculated using the following formula: 30 CC = 98 - ( W i * Z i ) mod 97 i=1 CC check number, W i weight value on i-th position in the table in point 1, Z i digit on i-th position in the table in point 1, ( W i * Z i ) mod 97 - the remainder of division ( W i * Z i ) by 97, i=1 i=1 if the result is less than 10, it is preceded by zero. 4. The check number calculated for NRB and IBAN, identifying the same account, is the same.

5 ANNEX No 2 The method of check number validation for NRB or IBAN 1. The validation of check number, included in NRB or IBAN, may be performed following one of the equivalents: The check number can be validated following. 1) simplified method, 2) polynomial method. 2. Using the simplified method the validation of check number is effected in the following way: 1) 2-letter Poland code (PL) is added on the right to the NRB, and check number is transferred from the beginning to the end, while in IBAN the first four characters, i. e. PLCC are transferred from the beginning to the end; as the result, after removing all spaces, the same sequence of characters for NRB and IBAN is received: AAAAAAAABBBBBBBBBBBBBBBBPLCC AAAAAAAA 8-digit bank branch code, BBBBBBBBBBBBBBBB 16-digit account number, CC- check number in NRB or IBAN, PL two letter Poland code, 2) in the received sequence letters PL are changed into numerical characters by converting them into their decimal values of ASCII code, i.e. P=25, L=21, which leads to a 30-digit number: AAAAAAAABBBBBBBBBBBBBBBB2521CC, 3) the received 30-digit number is divided by 97 and the remainder of this division is calculated, 4) the remainder of this division equalling 1 means that check number is validated correct. 3. The validation of check number, using the polynomial method, is effected in the following way: 1) the structure of weight, presented in the table below, which is assigned to consecutive digits of the sequence received in the way specified in 2 subpara. 1 and 2, is created, Table. Structure of weight for the validation of check number using the polynomial method i Wi Zi A A A A A A A A B B B B B B B i Wi Zi B B B B B B B B B C c i weight position,

6 Wi weight value, Zi digit on i-th position, 2) the validation of check number consists in controlling the genuineness of the formula below: 30 ( Wi * Zi) mod 97=1 i=1 Wi weight value on i-th position in the table in point 1, Zi digit on i-th position in the table in point ( Wi * Zi) mod 97 - the remainder of dividing ( Wi * Zi) by 97 i=1 i=1 If the control proves the genuineness of the formula above, the check number is validated as correct.