ZZPInt 23 (2018) 219 IX. Brasilien Atypical procedural agreements in the 2015 Brazilian Civil Procedure Code 1,2,3 Rechtsanwalt Prof. Dr. Fredie Didier Jr.,* Federal University of Bahia, Salvador, Brasilien 1. Procedural agreements: basic concepts, types and classifcation A Procedural agreement is a volitional legal act, on the factual basis of which the party is granted the power to regulate, within the boundaries of the legal system itself, certain legal procedural situations 4 or to change the procedure. From this perspective, the agreement is a source of legal procedural rules and is thus binding on the court which, under the Rule of Law, must observe and enforce 1. Procedural agreements: basic concepts, types and classifcation 2. Atypical procedural agreements 2.1 General clause of procedural negotia- tion. The principle of atypicality of negotiation regarding procedure 2.2 General rules of procedural negotiation 2.3 Procedural agreements entered into by the parties with the judge 2.4 Moment of executing the agreement 2.5 Validity requirements 2.5.1 General aspect 2.5.2 Capacity 2.5.3 Subject matter 2.5.4 Form 2.6 Voidability 2.7 Enforceability and revocability 2.8 Excessive burden, termination and review 2.9 Breach and burden of claiming 2.10 Performance 2.11 Principle of good faith and procedu- ral negotiation 2.12 Interpretation 2.13 Collective procedural agreements and procedural agreements that concern indeterminate cases. 2.14 Intertemporal law. 1 This article is the result of a research group “Transformações nas teorias sobre o pro- cesso e o Direito processual”, linked to Universidade Federal da Bahia and registered with Diretório Nacional de Grupos de Pesquisa do CNPQ (dgp.cnpq.br/dgp/espelhog- rupo/7958378616800053). This group is the founding member of “ProcNet – Rede Inter- nacional de Pesquisa sobre Justiça Civil e Processo contemporâneo” (http://laprocon.ufes. br/rede-de-pesquisa)”. 2 The Brazilian Civil Procedure Code will hereinafter be referred to as “CPC”. 3 This article, including the citations contained herein, was translated by Alexandra Martins Viana Barros. * Postdoctoral Fellowship (Universidade de Lisboa), LLD (PUC/SP) and LLM (UFBA). 4 DIDIER JR., Fredie; NOGUEIRA, Pedro Henrique Pedrosa. Teoria dos fatos jurídicos processuais. 2ª ed. Salvador: Editora JusPodivm, 2012, p. 59–60.