Background Positive evidence has been found for person-centered care provisioning (PCC), the level of person- centeredness of care is positively associated with residents’ quality of life, quality of care an wellbeing. When providing PCC, care and support are provided in line with the needs, preferences and capacities of people with dementia. PCC is seen as the golden standard for dementia care. However, in nursing homes, needs and preferences of people with dementia are not always obvious, due to the relatively high levels of cognitive impairment. This, and amongst others time constraints might hinder high PCC by care professionals. Limited evidence show that certain organizational and environmental conditions, such as satisfactory leadership, interdisciplinary collaboration, and continuing education, lead to higher PCC. In order to facilitate care professionals as much as possible in providing PCC, more insight is desirable. Objective This study aims to provide more insight into the modifiable factors that contribute to PCC for people with dementia in Dutch nursing homes. Methods A cross-sectional design was applied. Data were collected during the fifth assessment of the Living Arrangements for people with Dementia (LAD)-study from April 2019 until February 2020. Care professionals working in psychogeriatric units in nursing homes filled in an online survey. Organizational characteristics of participating nursing homes were inventoried. The level of PCC was assessed with the Dutch version of the ‘Person-centred care questionnaire’ (PCCq). Modifiable factors potentially impacting the level of provided PCC with regard to staff characteristics (e.g. autonomy, education), organizational features (e.g. size, involvement of family in care), and culture (e.g. learning climate) were included in multiple linear modelling. Preliminary results In total 58 nursing home facilities were included in the study, and 814 care professionals completed the survey. Average PCCq score was 3.2 (SD = 0.4; range 0 to 4, higher scores ...