Toggle mobile search bar

Frequently Asked Questions (FAQs) on RRT

Share and Print

Welcome to FAQ page for the Rostered Routine Testing (RRT). This page serves to address general questions about RRT.

Post-vaccination Questions

My workers are vaccinated. Why do they still go for Rostered Routine Testing? Can public measures be relaxed?

The approved vaccines, Pfizer-BioNTech and Moderna, have vaccine efficacy of about 95%. This mean that there could still be a few people getting COVID-19 even after getting vaccinated.

Vaccinations will take time to roll out and some people, such as those who have weakened immune systems, will be unable to get the vaccine and have less protection against the COVID-19 virus. Hence, Rostered Routine Testing (RRT) is still necessary to detect possible cases to prevent clusters from forming in dormitories and in the community.

In view of the recent clusters and cases in the community and dormitories, as well as the worsening regional situation due to emerging variants of concern, the frequency of RRT for vaccinated individuals will remain the same.

Public health and safe management measures, such as mask-wearing and safe distancing measures, must continue to be observed. Hence, we will adopt a controlled and gradual approach in easing restrictions for your workers to visit the community.

For more information on vaccinations, please refer to

General Information
a. What if an employee is on Medical Leave? Would he/she need to go for the swab test?
Employees who are on medical leave for fever or upper respiratory tract related symptoms (cough, runny nose, sore throat etc.) should not go for the swab test. However, if their medical leave is unrelated to fever or upper respiratory tract related symptoms, they may go for the swab test. Those who miss the allocated time slot for the swab test due to their medical leave, employers can schedule the worker for another appointment, with the earliest being 2 days after the original appointment.
b. What if the employee has just returned from Home Quarantine Order, Stay Home Notice or 5-day Medical Leave? Would they need to go for the swab test?
Employee returning from Home Quarantine Order (HQO), Stay Home Notice (SHN) or 5-day Medical Leave can take the swab test only if their HQO, SHN or 5-day Medical Leave has ended by the date of the scheduled swab appointment. Hence, workers that are currently serving QO/SHN/5-day MC should only be scheduled for a swab appointment at the earliest date after their QO/SHN/5-day MC ends.
c. What happens to employees found with medical contraindications?
Employees found with medical contraindications can proceed to be swabbed at the respective regional swabbing centers as oropharyngeal swab tests (i.e. throat tests) would be available. There will be no need to make a separate appointment for employees who require oropharyngeal swab tests.
d. Can companies send their employees to any private clinics or labs for tests to be done?
Companies should not approach laboratories/hospitals to set up a private arrangement for these tests.
e. My employee is a recovered worker. Will he/she be required to undergo RRT? If so, how do I do it?
From April 29, recovered workers who have passed 270 days from their date of symptoms onset or detection of infection will be enrolled back to RRT. This is regardless if the worker had been vaccinated with a single dose or not.
f. Can I change the venue of the swab test for my worker?
Employers can change the venue and date of the worker by clicking the ‘change’ button. Please note that all changes can only be made at least 2 days before the appointment.
g. My worker is unable to attend his swab test appointment. How can I reschedule his appointment?
You can reschedule the swab test appointments through the online Swab Registration System (SRS) at
h. How can I arrange for my employees to be tested?

For more information on the swab eligibility of workers, please refer to the section ‘Who Is Required to Undergo Rostered Routine Testing (RRT)” for more details on sector specific swab requirements.

For swab eligible workers, companies would have to make appointments through the online Swab Registration System (SRS) at All swabs will strictly be by appointment only.

i. Will companies have to pay for costs of swab tests?
The Government will fund the cost of swab tests until 30 September 2021.

For more information, please see here.
j. My worker has attended the RRT, why is his AccessCode still red for COVID-19 INFECTION? Can my worker proceed to work? What should I do?
Workers should only be deployed to work if their AccessCode in the SGworkpass app indicates a green status.

Employers can check the AccessCode details of their Employment Pass, S Pass and Work Permit holder workers from MOM’s Safe@Work eService. Please refer to the Safe@Work eService onboarding guide for more information.

If the AccessCode is red as the attendance of RRT has not yet been updated onto AccessCode, employers should not deploy the workers until the AccessCode turns green. 

If the AccessCode is red as the worker has been issued a quarantine order or a stay-home notice, employers should not deploy the workers until the quarantine order or stay-home notices have been lifted, and the AccessCode turns green. 

If your worker’s last swab result is shown as inconclusive, suspected positive or positive, please refer to 6.5 for further instruction. 

You may also refer to MOM’s FAQs at for more information.


For more information about Swab Registration System (SRS), visit the FAQ page here