Frequently Asked Questions Advanced Search Advanced Search Close Panel All of these words This exact phrase Any of these words Without these words Search within: CAASWhole of Government Expand All Collapse All Top 5 Most Popular FAQs1. How does CAAS determine my starting salary? Through regular benchmarking with the general market, CAAS ensures that your starting salary is competitive and will commensurate with your academic qualifications and prior work experience, if any. 2. Can I release free-flying helium balloons in Singapore? Large clusters of free-flying helium balloons may distract pilots of aircraft, including helicopters operating at low levels. If these objects are ingested by aircraft engines they can cause engine damage and endanger lives. As such, there are restrictions in place concerning the release of free-flying helium balloons in Singapore.During operating hours of the military aerodromes, the release of free-flying helium balloons is strictly prohibited. Outside the operating hours of the military aerodromes, the release of free-flying helium balloons is allowed subject to the following requirements:Within 5km of any airport or airbasePermit from the Civil Aviation Authority of Singapore (CAAS) requiredOutside 5km of any airport or airbaseNotification to the Civil Aviation Authority of Singapore (CAAS) requiredIn all cases, individually or as cluster, the balloons must not exceed 2 meters in any linear dimension. 3. What is the difference between ATCOs and Air Traffic Control Support Officers (ATCSOs)? ATCOs are responsible for the safe and expeditious flow of air traffic through our crowded skies at Changi and Seletar Airports. As an ATCO, you must be able to multitask, remain composed under pressure and possess strong communication skills. Operational ATCOs need to hold a valid ATC License to perform the job.ATCSOs, on the other hand, supports the ATCOs in ensuring the safe and efficient flow of air traffic at Changi Airport and in the Singapore Flight Information Region (FIR). ATCSOs execute air traffic control coordination on aircraft requests and clearances, as well as analyse and communicate aeronautical and meteorological information to pilots. ATCSO applicants may apply at any time in the year, and Proficiency Level training will be provided. 4. What are some of the benefits I will enjoy as an employee of CAAS? As an employee of CAAS, you will be entitled to various leave types, including vacation leave, family care leave and birthday leave. You will also enjoy flexible benefits and receive subsidised rates for your outpatient medical care under the Medisave-Cum-Subsidised Outpatient (MSO) Scheme. 5. Can I release sky lanterns in Singapore? Sky lanterns may pose a fire hazard or be a danger to aircraft operating in the vicinity. Furthermore, if these objects are ingested by aircraft engines, they can cause engine damage and endanger lives.During operating hours of the military aerodromes, the release of sky lanterns is strictly prohibited. Outside these, the release of sky lanterns is subject to a safety assessment and may be allowed on a case-by-case basis. If you are unable to find an answer to your query, please submit your Feedback to let us know how we can help you.