New rules of measurement (2) was developed by the Royal institute of chartered surveyors in 2013 whereas the Standard methods of measurement for was developed by the East African countries. Compare and contrast the two authorities as applicable in measurement of building works.

The Royal Institute of Chartered Surveyors (RICS) and the East African countries have both developed their own methods of measurement for building works.

The New Rules of Measurement (NRM) developed by RICS in 2013 is a suite of documents issued by the RICS Quantity Surveying and Construction Professional Group. The intention of NRM is to provide a standard set of measurement rules that are understandable by all those involved in a construction project. They are designed to be used across the whole project life cycle and allow costs to be tracked accurately.

On the other hand, the Standard Methods of Measurement (SMM) developed by the East African countries is a regional standard. It is designed to cater to the specific needs and practices of the East African construction industry. The SMM is more focused on the practical aspects of measurement, taking into account the unique characteristics of the region's construction methods and materials.

In terms of similarities, both the NRM and SMM aim to provide a consistent and transparent approach to the measurement of building works. They both serve as a guide for quantity surveyors and other construction professionals in preparing cost estimates, bills of quantities, and other contract documents.

However, there are also significant differences between the two. The NRM is more comprehensive and detailed, covering a wider range of construction works. It also incorporates the latest best practices in the construction industry. The SMM, meanwhile, is more tailored to the specific needs and conditions of the East African region. It may not be as comprehensive as the NRM, but it is more relevant and applicable to the local context.

In conclusion, while both the NRM and SMM have their own strengths and weaknesses, they both play a crucial role in ensuring the accuracy and consistency of building works measurement. The choice between the two would depend on the specific requirements and context of the construction project.