Guide to Handling Local Regulations When Using RTK Abroad

When bringing RTK positioning technology developed in Japan to overseas projects, addressing local regulations is crucial. When RTK equipment is used abroad, failing to pay attention to laws and rules that differ from Japan can lead to suspension or seizure of equipment and legal trouble. This guide comprehensively explains the local regulatory matters you should be aware of when using RTK overseas. It summarizes basics and precautions by category, including licenses for communication equipment and frequency restrictions, regulations on GNSS signal usage, local surveying qualification systems, legal treatment of survey deliverables, restrictions on taking data out of the country, contracts for connecting to local CORS, permits for installing base stations, restrictions on NTRIP distribution and cloud use, and more. Engineers and project managers involved in construction and surveying work overseas should check these items in advance to use RTK positioning safely and smoothly.

Communication Licenses and Radio Frequency Regulations

When using RTK equipment overseas, regulations related to radio communications are the first things to check. RTK positioning often uses radio to transmit correction information from a base station to a rover, and the frequency bands used and transmission power are governed by laws that vary by country.

• Differences in frequency bands: RTK radios commonly used in Japan operate in the 400 MHz or 920 MHz bands, but different frequencies may be allocated abroad. For example, many countries in Europe and Asia have opened 433 MHz or 863–870 MHz bands for short-range radio, while the United States and Canada use 902–928 MHz as an industrial, license-exempt band. Confirm in advance whether the frequencies supported by your equipment are legal in the destination country. Bringing Japan-spec radios as-is can result in cases where the supported bands are prohibited in the destination country.

• Radio equipment certification: Devices that only have the Japanese technical conformity mark (Giteki) will be treated as uncertified abroad. Each country or region has its own radio equipment certification system—for example, the FCC in the United States, CE marking in the European Union, and SRRC certification in China. Using radio equipment without these certifications can be considered illegal transmission and may lead to seizure of equipment or penalties. Before traveling, confirm whether the RTK radio equipment you plan to use has the local certification, or procure equipment that is certified locally.

• Requirement for radio licenses under telecommunications law: In some countries, specific frequency bands can be used without a license (so-called ISM bands), but there are output limits. If you plan to set up a high-power RTK base station that covers a wide area, many countries will require obtaining a radio station license. For example, in Japan, RTK radios in the 400 MHz band require a license and an operator qualification such as a Class-3 Land Special Radio Operator, and similarly, overseas, license applications or qualification requirements may be imposed. Check with the local radio regulatory authority (ministry of communications, regulatory commission, etc.) in advance, and if necessary, go through the license application procedures. Applications may require submission of technical details of the equipment, explanation of the intended use, payment of application fees, and may take time to obtain approval. Prepare well in advance of project start.

• Consider alternative communication means: If obtaining a radio license is difficult or the work is short-term, consider performing RTK using mobile data networks. By using NTRIP (described later) and sending/receiving correction data via the internet, dedicated radios are unnecessary and the hurdle of licensing can be lowered. Prepare SIM cards compatible with local LTE/5G networks and connect the rover to the network; this method is legal and stable in many countries.

Regulations on GNSS Signal Usage

RTK receives signals from multiple GNSS satellites for positioning, but there are also country-to-country differences in which satellites and signals can be used. In principle, receiving positioning signals from satellites is a passive act and is not regulated in many countries. However, there are several points to be careful about.

• Differences in satellite navigation systems: There are GNSS systems operated by various countries—GPS (U.S.), GLONASS (Russia), Galileo (EU), BeiDou (China), and Japan’s QZSS (Michibiki), among others. RTK receivers typically support multiple systems, but in some regions certain satellites may not be well positioned overhead, making them harder to use, and conversely region-limited satellites (QZSS or India’s NavIC, for example) may not be receivable overseas. When performing RTK positioning abroad, confirm whether sufficient satellites can be tracked locally (number of visible satellites and elevation conditions) and adjust the positioning plan as needed.

• Positioning augmentation services: Be aware of SBAS (Satellite-Based Augmentation Systems) and national augmentation signals that improve positioning. In Japan, MSAS and QZSS CLAS augmentation are available, while abroad other SBAS (such as EGNOS in Europe, WAAS in North America) may be available. Because SBAS services are region-limited, even if a receiver supports them, equipment brought from Japan may not be able to receive other regions’ SBAS. Some countries require registration or permission for foreign companies or foreigners to use their high-precision positioning services. For example, using China’s high-precision correction services may require prior application; check local GNSS augmentation service usage conditions.

• Military and security-related regulations: In some countries, high-precision positioning activities themselves draw national security attention. Even if receiving satellite signals is not prohibited, obtaining high-precision positioning data or performing surveying in certain areas may require permission. As noted later, China prohibits surveying without authorization by law, and obtaining GPS-based location information may be considered a spying risk. Similarly, some Middle Eastern countries restrict GNSS reception or surveying near military facilities, and there have been reports of Russia restricting access to its domestic GNSS reference stations from abroad. Check in advance whether local laws have any special provisions regarding GNSS usage.

Surveyor Qualifications and Local Licensing Systems

Qualifications and licenses required for surveying work differ by country. In Japan there are national qualifications such as "Surveyor" and "Assistant Surveyor," but these do not automatically apply overseas. Many countries have their own surveying or land surveying qualification systems, and official surveying work (especially surveys related to maps or boundaries) may only be performed by those with specific qualifications.

• Qualification requirements for official surveying: In the United States, licensure as a Professional Land Surveyor (PLS) is required by state, and the involvement of a PLS is required for determining land boundaries and submitting survey plans. European countries also typically require a certified surveyor (names vary by country—for example, France’s géomètre-expert) for cadastral or land parcel surveying. These qualifications usually require local degrees, passing exams, and practical experience, making it difficult for Japanese nationals to obtain quickly. Therefore, collaboration with locally qualified surveyors is common in overseas projects.

• Restrictions when unlicensed: Unlicensed personnel may be able to operate surveying instruments and obtain survey data, but the results may not be admissible as official documents. For in-house construction management purposes, RTK positioning may be fine, but official submissions to authorities or inspection materials often require signatures or seals from locally qualified surveyors. In some countries, performing surveying without a license is illegal, so confirm in advance which surveying activities require qualifications and, where necessary, engage or contract with local surveying companies or consultants.

• Specialization and corresponding qualifications: Some countries have field-specific surveying qualifications—general surveying, civil engineering surveying, land acquisition surveying, marine surveying, etc. Determine which field your RTK surveying work falls into and obtain support from an appropriately qualified professional. Also consider immigration and labor permit issues; in some cases foreign nationals may need authorization simply to perform surveying work locally. Procedures such as registering personnel through a local partner company or obtaining a short-term technical visa may be required.

Legal Recognition of Survey Results and Data Management

Whether the survey data and drawings you obtain are legally recognized is also important. High-precision RTK survey results are worthless if they are not accepted as official by local authorities or clients.

• Legal coordinate systems and accuracy requirements: Each country has its own coordinate system (geodetic datum). Submitting coordinates obtained in WGS-84 from Japan may not be acceptable; some countries require conversion to their national reference frame. When performing RTK surveys overseas, pay attention to transforming data to local reference coordinates and complying with the required drawing conventions. Some countries require accuracy verification or certification for official survey results; for example, in countries with a result verification system you must submit survey results to a designated organization for verification and obtain a certificate before the results are valid for government submissions.

• Signatures and approvals on survey deliverables: Related to surveyor qualifications, submitted drawings and reports may require signatures or seals from locally qualified personnel. This gives legal credibility to deliverables, and documents prepared solely by unlicensed personnel may be deficient for contractual or regulatory purposes. When preparing project deliverables, follow local required formats and, if necessary, obtain signatures from qualified local collaborators.

• Restrictions on exporting or storing data: Some countries have laws restricting the export of survey data or terrain models. Countries that regard geospatial information as related to national security require careful handling of survey data. In China, for example, unauthorized collection of geographic information or exporting it abroad is strictly controlled; foreigners taking survey data out of the country without permission can face legal penalties and risk being accused of espionage (note: based on China’s anti-espionage and surveying laws). Some Middle Eastern and Asian countries require permission or censorship by authorities when taking detailed map data or survey deliverables out of the country. If you plan to bring data back to Japan for analysis or share via the cloud, check local data import/export regulations and complete any necessary procedures.

• Management on cloud or servers: Storing survey data on cloud storage or uploading it to overseas servers may also be regulated in some countries. While GDPR in Europe is well known for personal data, some governments classify geospatial data as a strategic resource and prohibit storing it on overseas clouds. For sensitive project data, confirm the location of servers used for storage and the cloud service terms, and, if necessary, use local cloud regions or on-premises solutions to meet requirements.

Using Local CORS Networks

RTK requires correction information from base stations, and whether you provide this yourself or use existing local services greatly affects procedures and achievable accuracy. CORS (Continuously Operating Reference Station) networks are permanent GNSS base station networks operated by national geospatial agencies or private companies that distribute RTK corrections over the network. When performing RTK abroad, first check whether a local CORS service exists.

• Public and private RTK services: Advanced countries have CORS networks at national or state/regional levels offering high-precision positioning services. In the U.S., many states’ Departments of Transportation (DOTs) and universities operate real-time GNSS networks; in Europe there are public services such as the Netherlands’ network RTK (NETPOS) and Germany’s SAPOS. Private paid services by equipment manufacturers and telecom companies (e.g., Trimble VRS Now, Leica SmartNet, etc. — examples only) are available worldwide, particularly in urban areas. Using local CORS means you can perform RTK with only a rover and no installed base station, reducing equipment handling and licensing burdens.

• Usage contracts and fees: Most CORS networks require user registration or a contract. Public services sometimes restrict usage to local companies or residents, though overseas companies can often contract after completing procedures. Required documents may include local corporate information and contact details for a responsible person, so cooperating with a local project partner helps. Fees vary by country, but subscription models (monthly or annual) are common and generally offer good cost performance considering the precision obtained. For short-term projects, some services offer daily or weekly plans.

• Technical compatibility: When using a local CORS, confirm technical compatibility with your equipment. Obtain distribution formats (often RTCM), coordinate system settings, and communication details (NTRIP protocol server URL, port, etc.) in advance and configure the rover accordingly. Some regions provide network corrections (VRS, etc.) while others provide single-base corrections; check receiver firmware support. Meeting these requirements allows you to leverage local reference networks for stable centimeter-level positioning (cm level accuracy (half-inch accuracy)).

*(※Service names are illustrative and do not constitute endorsement.)*

Installing Your Own Base Station and Permits

If no usable CORS or similar service is available locally, you will need to install your own RTK base station. Even when you set up your own base, there are regulatory matters to consider.

• Temporary vs permanent installation: If a base station is placed only for the duration of a construction project, a temporary and simplified setup may suffice. However, installing a permanent base station, for example as an overseas branch operation, may require registration or permits with local authorities. Some countries require registration of GNSS reference stations and periodic calibration reports. Even short-term installations on public land or infrastructure require permits. Obtain consent from the landowner and confirm permissions and approvals before installation.

• Authorization for radio transmission: If your base station transmits radio corrections to rovers, you need the radio licenses mentioned earlier. In areas where mobile communications are unreliable and radio transmission is necessary, you will need to obtain a radio station license and local radio operator qualifications. If you distribute corrections via NTRIP instead of radio, regulatory burdens under radio law are reduced, but this can be difficult where internet infrastructure is lacking. Prepare for both radio and network communications depending on local infrastructure.

• Theft, vandalism, and security: Although not strictly regulatory, security risks are important when installing equipment abroad. Fixed outdoor installation of expensive GNSS receivers and antennas risks theft or damage. Local laws may require anti-theft measures or restricted-access zones. Even with permits, installing equipment near military sites or airports may attract attention from security forces; choose installation sites carefully and consider measures such as affixing a copy of permits to the equipment.

NTRIP Distribution and Internet Connection Regulations

NTRIP (an Internet Protocol used to transmit real-time positioning information) is widely used to transfer RTK correction data. Connecting a base station and rover via the internet enables receiving corrections over long distances, but you must pay attention to regulations concerning network connectivity.

• Differences in network environments: Mobile data and internet infrastructure vary by country. In mountainous areas or developing countries, communications may be unstable, making real-time data streaming difficult. Some countries impose internet censorship or restrictions that block certain ports or protocols. NTRIP typically uses HTTP or a dedicated NTRIP port (such as 2101), so check whether local firewalls block these. Use VPNs if needed, and perform connection tests with local SIMs in advance.

• Restrictions on cross-border distribution: When providing correction data across borders—e.g., from a base station in Japan to a rover abroad, or vice versa—the data will cross national borders. Explicit legal restrictions are uncommon, but providing positioning augmentation services commercially to other countries may require notification under local telecommunications law. Some countries do not officially support receiving positioning services from abroad (use may be technically possible but contractually prohibited). Closed intra-project use is usually not problematic, but if you intend to offer wide-area services, review the telecommunications laws of the relevant countries.

• Cloud integration restrictions: Many survey apps and RTK services integrate with cloud platforms for data processing and sharing. In some countries access to certain cloud services is restricted (China’s restrictions on specific foreign clouds, for example), or company policies may prohibit communication with foreign servers. If using RTK equipment that syncs with the cloud in real time, confirm whether an offline mode or local storage is available so work can continue if data cannot be synchronized on site.

Major Regulatory Differences by Country or Region

So far we have discussed general items; below are some representative country-specific examples. Priorities differ by region, so keep these typical cases in mind.

• China: Regulations are very strict. Unauthorized surveying by foreign companies or individuals is prohibited by law, and collecting geographic information using GPS can be considered a national security threat. There have been cases of Japanese engineers being detained, so always obtain local authority permission and conduct surveys jointly with a Chinese partner when using RTK in China. Be careful when importing equipment as well; radios not certified by China’s SRRC may be confiscated at customs.

• United States: Technically a relatively open environment, but pay attention to licensing and frequency. As noted, land surveying requires state-by-state PLS licensure. RTK radios at low power in the 902–928 MHz band are often usable license-exempt under FCC rules, and many products are designed accordingly. However, higher-power professional radios or other bands (e.g., 450 MHz) require FCC licenses or frequency allocations. Fortunately, nationwide real-time reference station networks are well developed, and NTRIP-based corrections are commonly available. With mobile connectivity, RTK can usually be operated without deploying a base station.

• European Union (EU): Radio equipment standards are harmonized across EU member states, and GNSS equipment with CE marking is generally usable. However, frequency usage conditions are detailed and you must comply with output limits and usage restrictions (duty cycles, etc.) for outdoor use in bands such as 433 MHz or 868 MHz. Surveying qualifications vary by country and there is no single Europe-wide license; follow each country’s rules. For example, the UK does not have a statutory surveyor registration system, but certain certified persons typically prepare land registration plans. Germany and France require state-exam-qualified personnel for official geodetic work. Public CORS services (e.g., France’s ORPHEON) are often available and multilingual support is relatively good.

• Southeast Asia: Regulations vary by country, but many countries require government approval or license registration when foreign companies conduct surveys. Vietnam has laws on foreign companies’ surveying and mapping activities requiring prior application and obligations to provide data to the government. Indonesia and Malaysia treat surveying and mapping as important for defense and resource management; when foreigners are involved, cooperation with domestic firms and permits may be required. Radio frequencies are regulated per country, so check regulations individually. ASEAN countries are increasingly developing CORS networks and solutions including transformations to local datums.

• Middle East: Handling of surveying and geospatial information can be security-sensitive. Saudi Arabia requires surveying and aerial photography permits from the General Authority for Survey and Geospatial Information (GEOSA); surveying with drones or ground surveys without prior permission is illegal. Gulf countries sometimes require joint ventures with local survey firms for foreign companies. Radio communications are strictly regulated and use without license is prohibited. This region often has clearly designated restricted areas around military facilities and oil plants; obtain area permits from authorities in planning. Be cautious about exporting data; in some countries, data must be submitted to and stored by the government.

• Other regions: In Africa and South America, regulatory situations vary. Some countries preserve licensing systems influenced by former colonial powers (e.g., countries in the Commonwealth using British-style land surveying systems), while others lack well-defined legal frameworks but still operate permit systems. Infrastructure projects frequently involve local government support, so confirm required procedures (permit applications, data-sharing obligations) with local contacts. In any country, ignorance of local rules is not a defense; understand national differences and respond appropriately.

Basic Measures for Complying with Local Regulations

Given the wide range of regulatory matters, the basic approach to handling them is common. Below are general measures for operating RTK equipment overseas.

• Thorough pre-research: Before travel, research local laws. Check official sites of relevant authorities (ministries of communications, surveying agencies, etc.) for regulations and application guidelines on communications, surveying/mapping, and data management. If language is a barrier, consult sources such as the Japanese Ministry of Foreign Affairs or JETRO country-specific regulatory information and safety data, or contact Japanese engineers living locally.

• Cooperate with local partners: Partner with local companies or consultants to support compliance. They know current practical requirements and may handle license acquisition or surveying permit applications. Leveraging local knowledge helps ensure compliance and smooth external relations.

• Obtain necessary permits and licenses: Apply promptly for identified permits and licenses. For radio licenses, prepare technical documentation and frequency/output details. For surveying permits, prepare plans of work, purpose statements, and local responsible person information. Carry permits and licenses on site and present them when requested. Obtain insurance (e.g., third-party liability) as required.

• Optimize equipment and operations: Adapt equipment and workflows to regulations. If radio is problematic, switch to cellular modems; if local CORS is available, subscribe instead of bringing your own base station; subcontract phases requiring licensed surveyors to local companies; if data transfer is constrained, carry data physically on USB drives. Have alternatives prepared and avoid sticking to a single approach.

• Follow the latest information: Laws and regulations may change. Monitor local news and official notices during the project and act quickly on changes. Positioning satellite technology is an area of active national interest, and new systems or international agreements may be introduced. Keep in touch with local experts and professional communities to stay up to date.

With these points in mind, you can handle differing national systems without panic. Prioritize safety and proceed with reliable surveying operations.

Recommendation for Simple Surveying Using LRTK

Finally, as a solution to simplify RTK operation overseas, we introduce LRTK. LRTK is a versatile surveying device that combines a smartphone with a GNSS receiver, enabling centimeter-level positioning (cm level accuracy (half-inch accuracy)) without complex equipment setups or advanced expertise.

A key feature of LRTK is that it primarily uses mobile networks for RTK positioning, making it easier to avoid local radio licensing issues described above. Since correction data are received over the internet via a smartphone, dedicated radios are unnecessary and you are not subject to each country’s frequency regulations. LRTK devices are compact and easy to transport, smoothing equipment importation. They fit in carry-on luggage and start positioning as soon as they are powered on, so site setup and initial configuration time is minimal.

LRTK also uses intuitive smartphone apps and cloud services that make data visualization and sharing simple. Even on overseas sites, measured coordinates can be uploaded to the cloud and shared with headquarters in Japan in real time (note: consider communication environment and data regulations for cloud use as discussed above; LRTK cloud supports secure data management). The user interface is easy for staff with limited surveying experience to learn, helping to overcome language barriers when training local workers.

By using LRTK, you can significantly lower the operational barriers to RTK positioning abroad. Compliance with local laws remains a prerequisite, but simplifying equipment and operations reduces the effort needed to handle regulations and lets you focus on surveying tasks. If you are involved in overseas construction or surveying projects, consider LRTK as a smart positioning solution. It can help make complicated procedures as simple as possible and support safe, high-precision surveying.