Drawing on surveys and interviews with college writing instructors and students at a public university in the United States, this mixed methods study revealed that in many cases instructors adopted translingual orientations, whereas students were committed to norms in their views of writing across differences. Students' orientations to language as stable and discrete revealed the perseverance of monolingualism and standard language ideologies in college writing classrooms. The results established that writing programs should go beyond merely accepting linguistic diversity and incorporate language rights into the curriculum to demonstrate openness to pedagogies of difference. Writing instructors should embrace translingual pedagogies and practices not just to challenge students' mainstream ideological positions but also to facilitate inclusive learning environments that celebrate linguistic diversity.