Even though project management certification is not compulsory but it would be good especially if you are involved in government related projects.
These are the two most popular project management certification bodies:
1. PMBoK® Guide (Project Management Body of Knowledge) by Project Management Institute (PMI)
Project Management Institute (PMI) first published PMBoK® Guide as a white paper in 1987 in an attempt to document and standardize generally accepted project management information and practices. The current edition, A Guide to the Project Management Body of Knowledge (PMBoK® Guide) – Sixth Edition, was released on September 6, 2017 and provides a basic reference for Project Management.
The PMBoK® Guide – Sixth Edition is widely accepted to be the standard in project management. It documents information and practices applicable to any type of project, not just IT related projects
2. PRINCE2® (PRojects IN Controlled Environments) Project Management Certification by Office of Government Commerce (OGC)
It is originated from the earlier PRINCE technique, which was initially developed in 1989 by the Central Computer and Telecommunications Agency (CCTA) as a UK Government standard for information systems project management; however, it soon became regularly applied outside the purely IT environment. PRINCE2® was released in 1996 as a generic project management method. PRINCE2® has become increasingly popular and is now the de facto standard for project management in the UK. Its use has gone beyond the UK to other countries.
The most current revision was released in 2005 by the Office of Government Commerce (OGC) and it is currently undergoing a refresh for 2008/9.
The “PRINCE2” name is a Registered Trade Mark of the OGC.