What is IMDA Singapore

In Singapore, radio communications equipment must obtain mandatory type approval from the Infocomm Media Development Authority (IMDA) before import, sale, or use. This process ensures that equipment complies with local technical standards to prevent interference with the radio spectrum. Obtaining IMDA approval is a prerequisite for entering the Singapore market, whether for consumer electronic products, industrial equipment, or telecommunications devices.

Two key standards, namely IMDA TS CD-SEC and IMDA TS CMT, apply to specific types of equipment, including routers as well as host devices such as mobile phones and IoT products.

IMDA’s Role and Regulatory Framework

The Infocomm Media Development Authority (IMDA) of Singapore is responsible for managing the allocation of radio frequency bands in Singapore and ensuring all wireless devices comply with the country’s regulatory standards. These standards aim to protect the integrity of Singapore’s radio spectrum, ensure safe and efficient equipment operation, and prevent interference with other communication systems.

The regulatory framework of the Infocomm Media Development Authority (IMDA) of Singapore draws on international standards developed by bodies such as the International Telecommunication Union (ITU) and the Association of Southeast Asian Nations (ASEAN). Equipment must comply with these standards to ensure interoperability and meet Singapore’s specific frequency allocation and power limit requirements.

Products Requiring Radio Type Approval

A wide range of equipment using radio frequency (RF) communications requires radio type approval. Such equipment includes:

• Consumer electronic products: Smartphones, tablets, and laptops with Wi-Fi or Bluetooth functionality.

• Industrial equipment: RF-based control systems and wireless monitoring devices.

• Cybersecurity-sensitive equipment (IMDA TS CD-SEC): Any equipment that processes sensitive information or poses cybersecurity risks, such as routers, IoT gateways, or surveillance systems.

• Cellular mobile terminals (IMDA TS CMT): Equipment relying on cellular networks for communication, such as mobile phones, tablets with SIM cards, and cellular routers.

Products using technologies such as Wi-Fi, Bluetooth, Zigbee, Radio Frequency Identification (RFID), and cellular communications require certification to operate legally in Singapore.

Frequency Allocation

Equipment seeking approval must comply with the frequency bands and power limits stipulated by the Infocomm Media Development Authority (IMDA) of Singapore. These frequency allocations align with international standards but also include national-specific considerations tailored to local conditions.

Examples of commonly used frequency bands in Singapore are as follows:

Specific transmit power limits are imposed on Short-Range Devices (SRD) such as RFID systems, remote controls, and wireless audio devices to ensure they do not interfere with broader communication networks. Equipment must remain within the permitted power output range, which varies by frequency band and intended application.

Understanding IMDA Standards

IMDA TS CBS (Cellular Base Station and Repeater Systems)

• Applicable equipment: Cellular base stations, repeaters, amplifiers, etc.

• Purpose: To ensure these systems operate within approved frequency bands and power limits and maintain compatibility with Singapore’s cellular networks (e.g., 3G, 4G, 5G).

• Example: 5G base stations installed to provide network coverage must comply with this standard.

IMDA TS Land Mobile Radio (LMR) Systems

• Applicable equipment: Walkie-talkies, two-way radios, and emergency communication systems.

• Purpose: Establishes technical specifications for land mobile radio to ensure efficient spectrum use and prevent interference with other services.

• Example: Walkie-talkies used for public safety, transportation, or logistics must adhere to this standard.

IMDA TS SRD (Short-Range Devices)

• Applicable equipment: Short-range, low-power devices such as Bluetooth devices, Wi-Fi routers, wireless microphones, and Radio Frequency Identification (RFID) systems.

• Purpose: To ensure these devices operate within designated short-range frequency bands and power levels to prevent interference.

• Example: Wireless microphones used in auditoriums or RFID readers in warehouses need to comply with this standard.

IMDA TS IOT (Internet of Things Devices)

• Applicable equipment: IoT devices such as smart meters, networked industrial equipment, and smart home systems.

• Purpose: Covers technical specifications for these devices to ensure efficient operation within designated frequency bands and compliance with cybersecurity requirements.

• Example: Smart meters transmitting utility usage data via wireless networks need to comply with this standard.

IMDA TS CD-SEC

• Applicable equipment: Equipment that processes or transmits sensitive data and requires strict cybersecurity compliance, such as routers, IoT gateways, and smart home devices.

• Purpose: To ensure data encryption, access control, and protection against unauthorized access.

• Equipment examples:

￮ Routers: Must comply with this standard if used to support sensitive communications or connect to IoT systems.

￮ IoT devices: Devices that collect or transmit personal and industrial data (e.g., smart meters or surveillance cameras).

IMDA TS CMT

• Applicable equipment: Cellular mobile terminals connected to mobile networks (2G, 3G, 4G, or 5G).

• Purpose: To ensure these devices operate within approved frequency bands and power limits and do not interfere with other communications.

• Special requirements for eSIM devices: For eSIM-enabled equipment, manufacturers must provide certification reports from recognized bodies such as PTCRB or GSMA, including compliance with SGP.23 and SGP.11 standards.

• Equipment examples:

￮ Mobile phones and tablets

￮ Cellular routers

IMDA Registration Schemes

IMDA offers different registration schemes based on equipment type, complexity, and associated risks:

For example, an IoT gateway with a router may fall into different categories depending on its complexity and functionality:

• Low-power, short-range gateways (e.g., using Wi-Fi or Bluetooth): Typically fall under ESER.

• Gateways supporting cellular or broadband networks (e.g., 3G/4G/5G capable): Registered under SER.

• Complex industrial IoT gateways with multiple interfaces: Usually require GER.

Local Representative and Laboratory Testing

• Local representative: Manufacturers based outside Singapore must appoint a local representative to manage the certification process, submit documentation, and communicate with IMDA.

• Laboratory testing: Compliance testing against standards such as IMDA TS CD-SEC and IMDA TS CMT must be conducted by recognized international laboratories or IMDA-accredited laboratories.

IMDA Radio Type Certification Process

The process to obtain IMDA Certification includes the following steps:

1. Identify applicable standards: Determine the type of certification required for the equipment and whether additional compliance with IMDA TS CD-SEC (cybersecurity) or IMDA TS CMT (cellular compatibility) is needed.

2. Testing: Conduct testing at an IMDA-accredited laboratory to verify compliance with frequency, transmit power, cybersecurity protocols (if applicable), and cellular network requirements.

￮ For IMDA TS CD-SEC: A cybersecurity assessment must be passed.

￮ For IMDA TS CMT: Compatibility testing with Singapore’s 4G/5G networks must be performed.

3. Application submission: Submit all required documents via the License One portal, including test reports, technical specifications, and security documentation (if applicable).

4. IMDA review and approval: IMDA reviews the submitted documents and test results. Upon approval, the product is granted type approval and listed in IMDA’s equipment database.

Host Equipment and IMDA Compliance

When importing equipment containing components such as routers, attention must be paid to IMDA’s regulatory requirements for host equipment and its components.

Integrated Systems: Host Equipment and Router as a Single Unit

If the host equipment and router are integrated into a single system, the entire unit must obtain IMDA approval. Even if the router has been individually approved, additional approval may be required if the host equipment introduces new functions (e.g., operating in additional frequency bands, adopting different protocols, processing sensitive data).

Example: A system incorporating a cellular router that performs data encryption or real-time monitoring may require approval for both IMDA TS CMT and IMDA TS CD-SEC.

Separate Units: Router and Host Equipment as Independent Components

If the router and host equipment are separate units capable of independent operation, re-approval of the router may not be required provided it has already been approved. However, if the host equipment itself has radio communication capabilities (e.g., Wi-Fi, Bluetooth, or cellular), it must obtain separate approval.

Example: A host device without wireless functionality used with an approved standalone router may not require additional approval. But if the host device has a built-in Wi-Fi transmitter, it must apply for separate approval under relevant IMDA standards.

Sensitive Data Processing

If host equipment or systems process sensitive data (e.g., personal, medical, or industrial information), compliance with the IMDA TS CD-SEC standard may be required. Even with an approved router, the overall security of the system must meet IMDA’s cybersecurity requirements.

Example: Equipment processing sensitive industrial data must comply with IMDA TS CD-SEC even if equipped with an approved router.

IMDA Labelling Requirements

In Singapore, all radio communications equipment must comply with IMDA-prescribed labelling requirements to ensure compliance and facilitate identification.

• Purpose of labelling: For compliance verification during sale, use, or import.

• Electronic labelling: Since 4 April 2012, IMDA has permitted the use of electronic compliance labels on registered telecommunications equipment.