Flighted Spongy Moth Complex (FSMC) Season - 2026

Members with ships calling at certain Far East ports are reminded that between May and October, they will need to ensure their vessels are inspected and certified free from Flighted Spongy Moth Complex (FSMC) prior to departure. This measure is intended to minimise the risk of regulatory action upon arrival in countries where this pest is not native.

The countries known to carry out seasonal pest inspection measures are: United States, Canada Australia, New Zealand, Chile and Argentina.

US and Canada

The Canadian Food Inspection Agency (CFIA) and the United States Department of Agriculture (USDA) issued a joint FSMC bulletin in February 2026, warning about the potential outbreak levels of this pest in 2026.

In addition to obtaining FSMC-free certification, they recommend exercising extra vigilance during self-inspections. Vessels calling at North American ports should expect increased enforcement intensity in 2026, including closer scrutiny of self-inspection records and port-of-call histories.

Vessels that are scheduled to call at the FSMC regulated areas during the specified risk periods, as outlined in the table below, need to be inspected and certified free of FSMC by a recognised certification body. The inspection should ideally be conducted during daylight hours and on the same day as departure.

Country	Ports/Prefecture	Specified Risk Period
Russian Far East	Nakhodka, Ol’ga, Plastun, Pos’yet, Russkiy Island, Slavyanka, Vanino, Vladivostok Vostochny, Zarubino, Kazmino	15 June to 15 October
China	All ports in northern China, including all ports on or north of 31o 15'N	1 June to 30 September
South Korea	All ports	1 June to 30 September
Japan – Northern	Akita, Aomori, Fukushima, Hokkaido, Iwate, Miyagi, Yamagata	15 June to 15 October
Japan – Central	Aichi, Chiba, Fukui, Ibaraki, Ishikawa, Kanagawa, Mie, Niigata, Shizuoka, Tokyo, Toyama	1 June to 30 September
Japan – Southern	Ehime, Fukuoka, Hiroshima, Hyogo, Kagawa, Kagoshima, Kochi, Kumamoto, Kyoto, Miyazaki, Nagasaki, Oita, Okayama, Osaka, Saga, Shimane, Tokushima, Tottori, Wakayama, Yamaguchi	15 May to 31 August
Japan – Far Southern	Okinawa	25 May to 30 June

While en route to North America, the crew are recommended to perform self-inspections and properly dispose of or destroy all egg masses and other life forms of FSMC. At least 96 hours prior to entering in a North American port, vessels are required to provide two-year port-of-call data to local agents, who will ensure that this information is provided to US or Canadian officials.

Australia

In Australia, the biosecurity programme (including FSMC) is managed by the Department of Agriculture, Fisheries and Forestry (DAFF). The heightened surveillance period for Australian ports is between January and May each year, and the regulated areas include ports in Eastern Russia only:

Country	Ports/Prefecture	Specified Risk Period
East Russia	All ports between 40°N and 60°N latitude and west of 147°E longitude	1 July to 30 September

Vessels that have called at regulated areas in the previous two calendar years are required to submit pre-arrival information through the Maritime Arrivals Reporting System (MARS). Upon submission of the pre-arrival report, targeted vessels receive an FSMC questionnaire. Based on risk profiling and assessment, vessels may be directed to undergo an FSMC inspection as part of their first port arrival formalities.

New Zealand

The Ministry for Primary Industries (MPI) is the competent authority dealing with FSMC regulations in New Zealand. Its policy is aligned with that of the US and Canada. However, New Zealand applies a shorter look-back period. 

Only vessels that have visited regulated areas during the specified risk period in the past 12 months (compared to 24 months elsewhere) are required to present a valid pre-departure FSMC-free certificate.

A copy of this certificate and the list of ports the ship called at in the last 12 months should be sent to MPI at least 48 hours before arrival.

Ships that do not have the FSMC-free certificate may need to undergo an inspection at a specific port determined by MPI or potentially at an agreed location 4 nautical miles offshore in cases where the risk is deemed as very high.

Chile

The Chilean Agriculture and Livestock Service (SAG) is the agency responsible for enforcing the FSMC policy. Its policy is aligned with that of the US and Canada. Ships that have visited regulated areas during a specified risk period within the last 24 months are required to provide SAG, at least 24 hours in advance, with a list of the ports they visited during that time, together with an FSMC-free certificate issued at the last port in the regulated area.

Argentina

The Argentinian National Service for Health and Agrifood Quality (SENASA) is the competent authority dealing with FSMC regulations. Its policy is partially aligned with those of the US, Canada and Chile. The specified risk periods are the same; however, SENASA’s definition of regulated areas in the Far East includes all ports located between 20°N and 60°N latitude. All Chinese ports are included in the regulated areas and there are some changes in the definition of Japanese prefectures. See table below:

Country	Ports/Prefecture	Specified Risk Period
Eastern Russian	Petropavlovsk-Kamchatskiy, Vanino, Nevelsk, Kholmsk, Korsakov, Kozmino, Slavyanka, Posiet, Zarubino, Vostochny, Nakhodka, Vladivostok	15 June to 15 October
China	All ports	1 June to 30 September
South Korea	Busan, Jinhae, Masan, Tongyeong, Jangseongpo, Okpo, Gohyeon, Incheon, Pyeongtaek-Dangjin, Daesan, Taean, Donghae-Mukho, Okgye, Hosan, Ulsan, Pohang, Gwangyang, Hadong, Samcheonpo, Yeosu, Gunsan, Mokpo, Boryeong	1 June to 30 September
Japan – Northern	Aomori, Fukushima, Hokkaido, Iwate, Miyagi	15 June to 15 October
Japan – Western	Akita, Yamagata, Niigata, Toyama, Ishikawa	1 June to 30 September
Japan – Eastern	Fukui, Ibaraki, Chiba, Tokyo, Kanagawa, Shizuoka, Aichi, Mie	1 June to 30 September
Japan – Southern	Ehime, Fukuoka, Hiroshima, Hyogo, Kagawa, Kagoshima, Kochi, Kumamoto, Kyoto, Miyazaki, Nagasaki, Oita, Okayama, Osaka, Saga, Shimane, Tokushima, Tottori, Wakayama, Yamaguchi	15 May to 31 August
Japan – Far Southern	Okinawa	25 May to 30 June

Ships that have visited regulated areas during a specified risk period in the last 24 months are required to provide SENASA with a list of ports together with a copy of the FSMC-free certificate issued by a recognised organisation at the last port in the regulated area.

Additionally, ships that have visited regulated areas outside of specified risk periods within the last 24 months are also required to provide a list of ports at least 72 hours before the ship’s arrival at an Argentinian port.

SENASA may conduct FSMC inspections based on its risk assessment.

Tips and tricks for dealing with the FSMC during this season

Inspecting vessels for egg masses, and their subsequent removal and disposal, are crucial in preventing the establishment of FSMC in new regions.

Some destination countries require vessels that have visited high-risk areas during the flight season to be inspected and certified that they are free of FSMC by a designated authority before departure. If no signs of FSMC infestation are found, the authority will issue a certificate stating the vessel is free of FSMC.

This certificate may be titled ‘Certificate of Inspection of Freedom from the Flighted Spongy Moth Complex’ or ‘Phytosanitary Certificate,’ depending on the issuing authority.

If multiple ports in the same country or different countries within the high-risk area are visited during the flight seasons, the official inspection should be conducted immediately before the vessel’s departure from the last port in the high-risk area during the applicable flight season.

Regardless of the requirement for an official inspection, vessels are advised to take the following preventive measures to mitigate the risk of infestation when calling at ports in high-risk areas during the FSMC flight season:

• Before departing from a high-risk port, conduct a thorough visual inspection of all accessible areas of the vessel’s superstructure, decks, holds, cargo and cargo gear. Perform another detailed visual inspection while en route to the destination port.

• Egg masses are often found in sheltered locations such as crevices and cavities, under tarps, behind doors or pipelines, around light fixtures and underneath the hatch coamings. Female Spongy Moths, attracted to light, may lay their egg masses on surfaces of the vessel exposed to night lights.

• To inspect difficult-to-reach areas of the vessel’s superstructure, such as the underside of bridge wings, use binoculars. Similarly, a small mirror attached to a stick can be used to inspect areas that are hard to see, for example, behind pipework next to the hatch coaming.

• If you find any egg masses, scrape them off and destroy them in alcohol or boiling water, or by incineration.

• Do not paint over them, as this will not kill them. Similarly, avoid using high-pressure water guns to remove them, as some eggs may be washed overboard and immersion in saltwater does not kill them.

• Record details of all visual inspections and of the removal and disposal of FSMC eggs in the vessel’s deck logbook.

Charter party clause

Members are recommended to refer to the BIMCO Flighted Spongy Moth Complex Clause for Time Charter Parties 2023, which aims to provide a commercial solution on the basic obligations and responsibilities of the owners and charterers when dealing with the Spongy Moth season.