'We have not seen any meaningful delays or disruptions in the ability to move and clear freight,' said Jon Slangerup, CEO of American Global Logistics consultancy.
Said Elio Levy, vice-president of New York forwarder Logfret: 'We have no issues with CBP (US Customs) or FDA (Food and Drug Administration) releases - we did not have anything detained.'
While routine business is unaffected by the shutdown, new initiatives that require regulatory approval have been delayed for the duration, said the report.
Airlines that intend to add new aircraft to their fleets have been delayed. Management of Southwest Airlines is reportedly bracing for a delay of planned services to Hawaii.
Mr Slangerup, former CEO of the Port of Long Beach, warned that front line government workers are deprived of support from their shut down departments.
Certified cargo screeners are ready to go, but airlines are not accepting cargo screened by dog teams without an official go-ahead from the Transportation Security Agency (TSA), reported Brandon Fried, executive director of the US Airforwarders Association.
The shutdown means no funds for affected departments, about 25 per cent of the federal government. As a result, about 800,000 government employees have been laid off or are working without pay.
They include front line staff, such as customs agents and air traffic controllers, but all support staff and management are laid off for the duration.