If both are Malaysians, the bride-to-be is between 16-18 years old, here’s what you need to do:

Submission for Application
Both the bridegroom-to-be and the bride-to-be must be present in person with the following documents:

• The father of the bride-to-be must seek approval from the Chief Minister of Jabatan Perkahwinan Negara (Department of Marriages). Unless a licence is granted by the authority otherwise such application would not be approved.
• Original and photocopy of identity cards
• Original and photocopy of birth certificates
• Two (2) passport-size (5.0cm x 3.5cm) coloured photographs each.
• A photocopy of the respective identity cards of two witnesses.
  The father must be the witness of the bridegroom-to-be or bride-to-be who is below 21 years old.
  If the father has passed away, an original death certificate of the father is needed and the mother would be the witness.
  If the parent have passed away, an original death certificates of the parent are needed and the immediate guardian would be the witness. However, the immediate guardian is required to present support documents as prove.
• The witnesses do not required to be presented during the submission.

Appointment
Appointment date of registration may be fixed during the submission of application. However, the appointment date shall be fixed between 1 week and one month from the date of the license approved by the Chief Minister.

On the day of registration of marriage
Both the bridegroom-to-be and the bride-to-be must be present in person together with their two witnesses. The documents required to bring along and guidelines are:

• Original identity cards of the bridegroom-to-be, bride-to-be and two witnesses.
• Original birth certificates of the bridegroom-to-be and bride-to-be.
• Original death certificate of the father/parent and support documents of immediate guardian of the bridegroom-to-be and bride-to-be (if necessary).
• The bridegroom-to-be and their male witness(s) must be neatly dressed (long sleeves shirts with tie or our national costume – batik). While the bride-to-be and their female witness(s) must also be neatly dressed. T-shirt, jeans, short pants and slippers are not allowed.
• Children are not allowed to attend the registration. This is to avoid them causing disturbances during the registration.
• Photograph taking is allowed, however, the photographer shall not be the bridegroom-to-be, bride-to-be or any of the two witnesses.
• The registration of marriage may not be carried out if the couple do not follow the above guidelines.

This is to serve as a reference only, the law might change, do check with Jabatan Perkahwinan Negara to confirm and finalise.