You are using an outdated browser and your browsing experience will not be optimal. Please update to the latest version of Microsoft Edge, Google Chrome or Mozilla Firefox. Install Microsoft Edge

August 26, 2021

Workplace Reopening: Mandates and Other Safety Measures under Thai Law

Around the world, COVID-19 is continuing to threaten the health of millions, interrupt daily life, and throttle business activity. In Thailand, the latest wave of infections has been more intense than any since the beginning of the pandemic, and many businesses have been forced to close down once again. There are reasons for hope though—chief among them the increasing pace of vaccinations. Not only are the vaccines effective at preventing serious health issues, they are helping keep both employees and customers safe in business settings so that commerce, trade, and tourism can resume once again.

Many in Thailand have already been vaccinated, and struggling employers are looking ahead to safely resuming full business activities, from reopening offices for employees who have been working from home, to welcoming customers and clients back to an environment that minimizes the risk of COVID-19 exposure.

In anticipation of such a return to business at full capacity, many Thai employers are taking note of companies and organizations overseas boosting COVID-19 safety in workplaces by mandating vaccines and other measures, and asking whether such mandates could be imposed here in Thailand.

The main legal concept to consider here is the provision in the Labor Protection Act B.E. 2541 (1998), which authorizes employers to issue “lawful and just” orders to employees. For an order to be “lawful and just,” it must be proportionate to the circumstance. In the current context of the COVID-19 pandemic, employers can refer to the Communicable Diseases Act B.E. 2558 (2015), as well as other local regulations, to provide grounds when asserting that their risk-mitigation orders are proportionate, lawful, and just.

It is doubtful that a Thai court would rule that the circumstances we find ourselves in now would justify an employer requiring employees to be vaccinated, but this legal standard can be applied to other actions as well. Employers should consider current workplace conditions and all other aspects of the situation on a case-by-case basis to determine whether their order is proportionate, lawful, and just. A number of questions can help clarify the acceptability of a workplace requirement minimizing the risk of COVID-19 exposure or transmission. For example:

  • Is there a government regulation or announcement determining high-risk conditions that supports an employer’s assumptions (of a real risk that is likely to have adverse effects if not handled correctly)?
  • Are there reasonable grounds to believe that an employee is infected with COVID-19?
  • Is there a high possibility of the virus being transmitted in the workplace by the employee in question?
  • Are there other solutions that could remove the risk (e.g., having the employee work from home or in isolation, etc.)?

When all of the relevant questions are considered, an employer may issue orders to certain employees to safeguard health and safety in the workplace, and if the employees violate these without reasonable cause, the employer may prohibit them from entering the workplace.

As mentioned above, the Communicable Disease Act has been one of the key pieces of legislation enlisted in the fight against the pandemic. When there are reasonable grounds to suspect that a dangerous or communicable disease is prevalent in an area, authorities may require infected or high-risk persons, contacts, and carriers to undergo medical examination or treatment—including immunization. The authorities may also issue a written order instructing any person to carry out these actions.

Therefore, it is possible that an employer could be ordered by a communicable disease control officer to proceed with requiring employees to be vaccinated. If that were to occur, it could support the idea that the employer’s order is “lawful and just,” as the employer would face penalties for failing to comply and would thus be justified in taking disciplinary actions to fulfil their duty under the officer’s order. Similarly, if the officer’s order is actually for all persons in the area of a workplace to be vaccinated, an employer may also then require the relevant employees to be vaccinated accordingly.

Mandating vaccination for employees in the absence of such an order could be problematic as an employee could challenge the mandate as not “lawful and just.” The grounds for this argument lie in the constitution itself. Sections 28 and 47 of the constitution provide that “a person shall enjoy the right and liberty in his or her life and person,” that “a person shall have the right to receive public health services provided by the state,” and that “a person shall have the right to the protection and eradication of harmful contagious disease by the state free of charge as provided by law.” The constitution does not, however, impose any duty to be vaccinated against one’s will. Thus, forcing an employee to undergo vaccination against his or her will could put an employer at risk of litigation and liability.

However, focusing on the viability of (probably off-limits) vaccine mandates and other workplace orders to prevent the spread of COVID-19 may not even be the best approach for employers. After all, if 100% vaccination is the optimal scenario, the most realistic way to attain this is through all the employees consenting voluntarily to be vaccinated. Thus, good relations with the workforce—in this case facilitating employees’ access to vaccines and emphasizing the importance of getting vaccinated—are likely the best route to obtaining high vaccination rates.

In addition, employers can require observance of standard COVID-19 safety precautions in the workplace, such as masks, social distancing, hand washing, good ventilation, and other hygiene precautions to add a layer of protection and minimize the threat of COVID-19 transmission. Mandating technology use to minimize or even replace face-to-face or physical contact is also possible, and workplaces and customer contact areas could be rearranged to prevent or limit crowding.

While the background discussed above should provide employers with a general guide to the position Thai law takes on this subject, employers can also seek specialist opinions for advice tailored to their specific circumstances. Through the implementation of policies and practices that are flexible, supportive of employee morale and health, and vigilant against any future onset of employee illness, employers will be able to help their businesses get steadily back to normal.

RELATED INSIGHTS​ 

August 20, 2026
Vietnam’s Law on Bankruptcy and Rehabilitation No. 142/2025/QH15, passed by the National Assembly on December 11, 2025, does something many regional counterparts do not yet attempt: it instructs parties and arbitral tribunals on exactly what happens to an arbitration once a debtor becomes insolvent. Together with the Law on Commercial Arbitration No. 54/2010/QH12, the new law improves upon what used to be an uncertain area of practice, now providing an explicit, mandatory sequence of procedures. Suspension and Termination of Arbitration Proceedings Under article 40(2) of the law, once a Vietnamese court accepts a bankruptcy petition, any arbitration that concerns the debtor’s financial obligations must be temporarily suspended as soon as the tribunal receives the court’s notification. If the court subsequently issues a decision commencing bankruptcy proceedings, article 59(2) takes a further step: the suspended arbitration is terminated outright, and the underlying case file is transferred to the court handling the insolvency for resolution. The two provisions work as a sequence: first suspension, then termination and transfer, rather than as independent triggers. Meanwhile, article 60(4) reinforces this effect by vesting the bankruptcy court with exclusive jurisdiction over all claims against the debtor from the date the petition is accepted. Notably, this mechanism operates automatically, without the need for the insolvency court to issue a separate anti-arbitration order. The tribunal simply suspends or terminates the proceeding by operation of law once notified; however, Vietnamese law currently provides no procedure by which a party can apply to the insolvency court for permission to continue the arbitration despite the statutory effect. Practitioners with a Vietnamese counterparty in arbitration should treat notification of a bankruptcy filing as something to flag to the tribunal immediately since continuing to arbitrate a claim that has become subject to article 40(2) or 59(2) risks producing an award vulnerable
August 20, 2026
Thai law contains no provision that speaks directly to what happens to an arbitration when one of the parties becomes insolvent. The interaction between arbitration and insolvency is derived instead from the general operation of two separately drafted laws: the Bankruptcy Act B.E. 2483 (1940) and the Arbitration Act B.E. 2545 (2002). Because Thai courts have had few opportunities to interpret how these two statutes apply together, the practical answer to many questions, such as who represents an insolvent party in arbitration, whether an award will be enforced, and what happens to a foreign proceeding, depends on inference from general principles of insolvency, arbitration, and procedural law rather than on settled rules. Liquidation and Restructuring The Bankruptcy Act governs both liquidation, which winds up a debtor’s affairs, and restructuring (rehabilitation), which aims to preserve a business. The consequences for arbitration differ accordingly. In liquidation, the debtor’s assets vest in the official receiver, who alone can conduct or continue any arbitration affecting the estate; the debtor loses the authority to act on its own behalf. In restructuring, the plan preparer or administrator takes over that role, but there is more room for the debtor to remain involved, since the objective of rehabilitation is to keep the business operational. Restructuring carries an automatic stay that takes effect once the Bankruptcy Court accepts the restructuring petition. This stay can halt an arbitration regardless of where it is seated. In contrast, liquidation does not work through a stay; instead, the debtor’s loss of authority over its own assets and disputes is what constrains the arbitration. Neither proceeding provides a party a formal route to apply for permission to continue arbitrating—the Bankruptcy Act contains no such mechanism—though in restructuring cases the Bankruptcy Court may allow proceedings to continue where doing so will not prejudice
August 20, 2026
As part of its membership in Lex Mundi, Tilleke & Gibbins has released the latest edition of its Guide to Doing Business in Thailand, providing an overview of the legal, regulatory, and commercial considerations for companies establishing or expanding operations in Thailand. The 2026 edition offers practical insight into the country’s business environment, investment framework, and operational requirements. The guide covers a wide range of topics relevant to foreign and domestic investors, including: Investment incentives and promotion schemes Financial facilities and banking regulations Exchange controls and money transfers Import and export regulations Business structures and incorporation options Requirements for establishing a business Operational and compliance considerations Business cessation and insolvency procedures Employment and labor laws Taxation Immigration and visa requirements Prepared by Tilleke & Gibbins lawyers across multiple practice areas, the publication outlines key aspects of doing business in Thailand, including foreign investment restrictions, regulatory compliance obligations, corporate structures, employment requirements, and recent legal and economic developments affecting investors. The publication forms part of Lex Mundi’s Country Guides series, a global collection of jurisdiction-specific reference materials prepared by member firms around the world. Together, these guides help companies evaluate opportunities, compare regulatory environments, and plan international business activities across multiple markets. The full Guide to Doing Business in Thailand 2026 is available through the button below.
August 19, 2026
Arbitration clauses and national court jurisdiction have long existed in a delicate equilibrium, and nowhere is that equilibrium tested more often than in the drafting of multitier dispute resolution clauses. Such clauses—requiring negotiation before arbitration—are ubiquitous in international construction contracts, and they frequently employ permissive vocabulary at the arbitration tier. The formulation “either party may submit the dispute to arbitration” is intended to signal that either side is entitled to initiate proceedings. Yet it is periodically seized upon by claimants who prefer national courts, on the theory that “may” preserves a parallel right to litigate. Each apex-court pronouncement on this question is therefore significant for drafting practice and forum predictability. In 2019, the Thai Supreme Court delivered Thailand’s clearest answer to date (Judgment No. 3427/2562). Reversing an appellate court decision, the Supreme Court held that permissive wording at the point of commencement does not dilute the parties’ antecedent agreement to withdraw their disputes from the courts—doing so in regard to an International Chamber of Commerce (ICC) arbitration clause seated in Singapore, a configuration typical of foreign-invested projects in Thailand. This article examines the court’s reasoning, situates the decision within comparative jurisprudence, and draws out its practical lessons for parties and drafters operating in the Thai market. Background of the Dispute The dispute arose from a subcontract for civil engineering and architectural works concluded on September 25, 2014. Clause 19 of the subcontract governed dispute resolution. Clause 19.1 required the parties, at the request of either, to seek to resolve any dispute “in connection with, arising out of, or relating to” the subcontract through mutual consultation within sixty days of written notice. According to clause 19.2.1, if the dispute could not be resolved within that period, “either party may submit the dispute to arbitration,” to be conducted under the ICC