The respondent, a native and citizen of El Salvador, worked as a taxi driver and member of a cooperative taxi association during the Salvadoran civil conflict of the early 1980s. Guerrilla forces sought to coerce taxi cooperative members to comply with work stoppages and to provide transportation services to the insurgency. According to the respondent, guerrillas threatened taxi drivers, vandalized taxis, and harmed drivers who refused to cooperate; he personally received threats after declining to participate in a strike and resisting demands related to the insurgents' operations. Fearing for his safety, he fled to the United States and applied for asylum and withholding of deportation. He asserted that he was persecuted on account of his political opinion (including neutrality or opposition to guerrilla demands) and on account of membership in a "particular social group" consisting of taxi drivers or members of the taxi cooperative. An immigration judge denied relief, and the respondent appealed to the BIA.
Does a group defined as Salvadoran taxi drivers or members of a taxi cooperative qualify as a "particular social group" under the INA, and were the threats and coercion by guerrillas "on account of" a protected ground so as to warrant asylum or withholding of deportation?
"Membership in a particular social group" refers to a group of persons who share a common, immutable characteristic—one they either cannot change or should not be required to change because it is fundamental to their identities or consciences. The characteristic may be innate (such as sex, color, or kinship ties) or, in some circumstances, a shared past experience that is immutable. Interpreted ejusdem generis with race, religion, nationality, and political opinion, the PSG ground must reflect comparable, fundamental attributes rather than voluntary or changeable affiliations like occupation. Persecution may be inflicted by the government or by non-state actors that the government is unable or unwilling to control. The persecutor's harm must be "on account of" (i.e., motivated by) a protected ground; generalized civil strife or efforts to compel compliance with non-political demands ordinarily do not satisfy the nexus requirement. At the time of Acosta, the BIA treated the "well-founded fear" standard for asylum as equivalent to the "clear probability" standard for withholding; that equivalence was later rejected by the Supreme Court.
The BIA dismissed the appeal and denied asylum and withholding of deportation. It held that Salvadoran taxi drivers or taxi cooperative members do not constitute a "particular social group," and that the threats and coercion by guerrillas were not shown to be on account of the respondent's political opinion or any other protected ground. Consequently, the respondent failed to establish eligibility for either asylum or withholding.
The Board began by interpreting "particular social group" in context with the other protected grounds. Applying ejusdem generis, it reasoned that the five grounds should share a common quality: they target individuals based on characteristics that are either innate or so fundamental that one should not be compelled to change them. From this, the BIA articulated the now-canonical "immutable characteristic" test. It explained that traits such as sex, color, kinship ties, or certain shared past experiences may qualify, whereas changeable or voluntary characteristics—like current occupation or membership in a workplace cooperative—generally do not. Because taxi driving is an occupation that can be changed, and cooperative membership was a voluntary economic association, the respondent's proposed groups lacked the requisite immutability. Turning to nexus, the BIA concluded that the respondent failed to prove that the guerrillas targeted him "on account of" a protected ground. The record indicated the insurgents' primary aim was to compel participation in work stoppages and advance their logistical objectives, not to punish him for his political opinion or an imputed political opinion. Coercion to comply with strikes or to provide transportation in furtherance of an insurgency, without more, does not establish that harm is motivated by a protected ground. The Board emphasized that generalized conditions of civil conflict and noncompliance with insurgent demands do not, by themselves, transform threats into persecution on a protected basis. The BIA did recognize that persecution may be carried out by non-state actors when the state is unable or unwilling to control them, thereby confirming that guerrilla groups can be persecutors under the INA. Nevertheless, because the respondent failed to satisfy the PSG definition and the nexus requirement, he could not meet the legal criteria for asylum or withholding. Finally, consistent with then-prevailing BIA precedent, the Board treated the asylum standard as equivalent to the withholding standard, concluding that the respondent had not shown a well-founded fear or a clear probability of persecution on a protected ground.
Matter of Acosta remains the foundational authority for defining "particular social group." Its immutable characteristic test has been embraced by federal courts and the BIA and undergirds later refinements such as "particularity" and "social distinction" (e.g., in Matter of M-E-V-G- and Matter of W-G-R-). Acosta also clarifies that non-state actors can be persecutors when the state cannot or will not protect victims and highlights the centrality of the nexus requirement: harm must be motivated by a protected ground, not merely by criminality, coercion, or civil strife. Although Acosta's equivalence of the asylum and withholding standards was superseded by INS v. Cardoza-Fonseca (1987), its PSG definition and nexus analysis continue to shape modern asylum claims, influencing recognition of groups based on gender, sexual orientation, family ties, and certain past experiences.
Matter of Acosta is indispensable for understanding how U.S. law conceptualizes "particular social group." By anchoring PSG to immutable or fundamental characteristics and insisting on a clear motive-based nexus to a protected ground, the decision provides enduring analytical tools for evaluating asylum and withholding claims. It also confirms that non-state actors can be persecutors when the state cannot protect victims, a principle that remains central to contemporary refugee law.