Republic of Singapore identity card for citizen.

In a very poor condition, the lamination was split and soiled/dust on the splitting area. Update of address and National Registration Identity Card (NRIC) number were issued by sticking a new paper on the back, perhaps the reason why the lamination was split.

The First Re-Registration 

Singapore's independence brought on the 1966 National Registration Act. All citizens and permanent residents were required to register or re-register for their ICs. A new identity card was thus introduced in 6 May 1966 and the re-registration exercise was rolled out in two phases. A total of 1, 233, 705 cards were issued. 

Pink Identity Cards for Singapore Citizens  whilst Blue identity Cards for Permanent Residents. 

It replaced the old ones which proved to have some security weaknesses. Among the weaknesses, easily substituted photographs and an alphanumeric identification that changed each time an individual had to replace his or her IC. 

The ICs came laminated and printed with newly-issued identification numbers. Numbers unique to the individual, numbers that would be retained for subsequent IC replacements. 

Until 29 September 2002, the NRIC indicated its holder's blood group. This information was subsequently removed due to the widespread availability of quick blood group tests that are conducted during medical emergencies.

IC NUMBER : S 0858861 / I

IC number was updated from only numbers to alphanumeric.

"S" is the 19th letter of the alphabet, it was reinterpreted as denoting that the person was born in the 1900s (1900–1999).

"I" is the checksum letter.

NRIC CHECK DIGIT

The Singapore NRIC number is made up of 7 digits and a letter behind. This letter is calculated from the first 7 digits using the modulus eleven method. 

The steps involved to obtain the check digit is

1. Multiply each digit in the NRIC number by its weight.
2. Add together the above products.
3. Divide the resulting sum by 11.
4. Subtract the remainder from 11 to give the check digit.
5. Check the check digit against the table to obtain the alphabet.

The following table shows the weight for the NRIC number in Singapore :
 

The following table is used to change the check digit into the corresponding alphabet.

 

 

This person has a NRIC number S 0858861 / I