What is the fine-grained topic of the following text: A dedicated IT platform, the Register for Biocidal Products (R4BP 3), will be used for submitting applications, exchanging data and information between the applicant, ECHA, Member State competent authorities and the European Commission. Only return the topic.
The use of the Register for Biocidal Products (R4BP 3) IT platform for data and information exchange in applications.