Outdoor (Non-religious) Solemnisation Procedures - What, When and How

Here's my step by step guide for reference.
Items with check is for my own reference.

The main criteria is of course a solemnisation held outside ROM office.

1: Get a solemniser

Ensure that his name is still valid under the list of licensed solemniser.
There are 3 main categories: grassroot leader, justice of peace and additional solemniser.

2. Check eligibility
Special conditions if you are below 21 years of age.
CHECKVerification and Statutory Declaration: Both of you are required to come to ROM on the scheduled date and time.

3. What to prepare
NRIC (Identity Card for Singaporean & PR) / Passport (for foreigners)
NRIC (Identity Card) / Passports of 2 witnesses above 21 years of age

Witness can be anyone and no restriction on nationality.

CHECK:Verification and Statutory Declaration: Both of you are required to come to ROM on the scheduled date and time.

4. Time
The earliest and latest date you may solemnise your marriage is after expiration of 21 days and before expiration of 3 months respectively of notice given.
CHECK
21 days notice period
If you file your notice of marriage on 1 October, a 21-day notice period shall be 2 - 22 October. The earliest solemnisation date shall be 23 October.

3 months expiration period
If you file a notice of marriage on a 25th day, the expiry date at 3 months shall be on 25th. That is, if you file on 25 September, the latest solemnisation date or expiry date shall be 25 December. Here's a list of more examples:

5. Register filing:
VERY IMPORTANT CHECK
(a) NRIC or Passport of the groom, bride and 2 witnesses above 21 years of age (click here)
(b) Solemnisation date, time and the full address of the venue
(c) Consent Form signed by a solemniser (for OUTDOOR)

All information is available under www.rom.gov.sg