The Cabinet approved a bill Friday that would overhaul the nation’s immigration control law by introducing new visa categories for foreign workers, in an attempt to address the graying population and shrinking workforce.

“Creating a new residence status to accept foreign workers is of utmost importance as the nation’s population declines and businesses suffer from lack of personnel,” Chief Cabinet Secretary Yoshihide Suga said at a news conference on the day.

Although details remain hazy, the new bill marks a departure from previous policy in allowing foreign individuals to work in blue-collar industries for a potentially indefinite amount of time if certain conditions, such as holding a valid employment contract, are met.

Yet amid concerns over whether the nation has the infrastructure and environment to accommodate an inflow of foreign workers, the government has categorically denied that the overhaul will open the doors to immigrants.

“We are not adopting a policy on people who will settle permanently in the country, or so-called immigrants,” Prime Minister Shinzo Abe told the Lower House Budget Committee on Thursday. “The new system we are creating is based on the premise that the workers will work in sectors suffering labor shortages, for a limited time, in certain cases without bringing their families.”

Justice Minister Takashi Yamashita told the same committee that the government does not plan to cap the number of workers to be admitted into the country under the new residence statuses.

“The premise of the new system is to accept foreign individuals based on the extent that workers are in demand and how scarce labor is in the workplace,” he said Thursday, adding that the ministry may stop issuing the new visas based on discussions with the relevant government agencies.

“We are not thinking of setting a numerical target regarding the incoming foreign workers, but will cap the inflow depending on the situation on the ground,” he added.

The overhaul, which would come into effect in April if passed during the current extraordinary Diet session, would create two new residence status types for foreign individuals working in sectors suffering labor shortages.

The first category would be renewable for up to five years and would require applicants to have a certain level of skill and experience in their fields. As a general rule, workers in this category would not be allowed to bring family members into the country.

The second category would be renewable indefinitely for workers with valid employment contracts. This category would require a higher level of skills than the first category and would allow workers to bring along spouses and children.

Regardless of the category, the foreign workers would be required to work in designated sectors that face labor shortages. Some 14 sectors are being considered for designation in the first category, whereas five are being considered for the second, media reports have said. Those sectors include the construction, agriculture and hotel industries.

Opposition lawmakers have slammed the apparent haste with which the government is trying to pass the amendment, proposing that it prioritize rectifying the current Technical Intern Training Program — which is rife with allegations of human rights violations and abuse — before further expanding avenues for foreign labor.

Speaking to the same Lower House Budget Committee on Thursday, Justice Minister Yamashita revealed that a total 4,279 trainees under the program had gone missing in the January-July period this year.

“This is an extraordinary figure,” said lawmaker Akira Nagatsuma of the Constitutional Democratic Party of Japan, adding that the pace suggests the number of missing interns in 2018 could exceed last year’s record — 7,089 — by year-end.

Nagatsuma also said that the whereabouts of many of these trainees who disappeared from work remain unknown, with Justice Ministry data showing that there were 6,914 such individuals staying somewhere in the country, under the radar, as of January this year. “I believe that this year will also see a substantial number of missing trainees in total, but I don’t think we should blame the foreign nationals who ran away in all of these cases. I’m sure there are lots of cases where the trainees felt they had to get away, or even thought they might die if they stayed,” Nagatsuma said, citing examples of trainees being harassed or bullied, cooped up in a cramped apartment and consigned to menial jobs that require no technical skills.

“I think it’s very irresponsible of the government to try to open more doors for foreign workers while turning a blind eye to these existing problems under the trainee program,” he said.

Opposition lawmakers also say the government’s claim that it will set rigid, high-bar criteria for transition from the first visa type to the second — lest the system be misconstrued as Japan shifting toward accepting immigrants — might not sit well with the nation’s business community.

In a hearing with multiple ministries earlier this week, Kazunori Yamanoi, a lawmaker for the opposition Democratic Party For the People (DPFP), raised a hypothetical, but highly likely, situation in which trainees recruited under the existing internship program switch to the new visa framework after up to five years of their apprenticeships.

Under this scenario, these foreign workers will have stayed in Japan for a total 10 years by the time their visa expires after another five years. “By then, those foreign workers with 10 years of experience in Japan will have developed such seasoned skills that they may even hold critical positions in their companies … and I would imagine company employers wanting them to transition to the second-category visa so they can stay on,” Yamanoi said.

A Justice Ministry official, when contacted by The Japan Times, said it is “theoretically possible” that these workers with 10 years of experience in Japan would qualify for permanent residency, but how the reality will play out is still uncertain.

At the DPFP’s separate hearing with the Keidanren, the nation’s biggest business lobby, an official said the business community’s wish is for talented foreign workers brought in under the new system to smoothly transition to the second type of visa so they can bring along their families and work in Japan for the long haul.

“I think this runs counter to the government position that it will subject applicants for the second-type visa to tough scrutiny so they can’t be easily granted access to longer-term residency,” Yamanoi said.