Survey Policy in the Sultanate of Oman
1. In all cases where a contract is
awarded to a company or other organisation, the name of the person directly
responsible for delivering the survey project must be specified in contractual
documentation. This person must be a Licensed Professional Surveyor. For the
above reason, a government contract for the collection of geospatial data cannot
be awarded directly to an organisation employing only non-licensed Surveying
Technicians, or to non-licensed self-employed Surveying Technicians. However, it
is permissible for a company to not directly employ a Licensed Professional
Surveyor but to appoint a Licensed Professional Surveyor through a sub-contract
or other arrangement, for the purposes of acting as the named Licensed
a. 1st order horizontal accuracy standards of GPS or conventional horizontal surveys.
b. Category 2 of 2nd order vertical accuracy standards of conventional geodetic levelling.
c. 1st order Gravity accuracy standards of gravity surveys.
7. Survey monuments must be precisely and clearly earmarked on the ground and compatible with minimum relative standards. Specifications of these monuments must be submitted in a format that can be verified by NSA.
8. The original field records (or acceptable copies) along with survey data must be submitted to the NSA for retention in the national archive. These records shall be checked at the same time the survey data are reviewed. In case the records are not submitted, the National Survey Authority shall reserve the right to reject or disapprove the dissemination of data. If data are, otherwise, published they shall bear a disclaimer notice.
9. Beneficiaries of Oman National Continuous Operating Reference Stations Network (OMANCORSNET) services shall submit a report including plans on their survey work. This information is important for geodetic control and shall be presented in the required format.
10. Before starting the survey work, beneficiaries of Oman National Continuous Operating Reference Stations Network (OMANCORSNET) services shall submit the proposed work plan based on Oman National Geodetic Datum (ONGD), the equipments, and the planned field procedures. This will allow NSA to comment on the proposed plan using information available in its database pertaining to accuracy and circumstances of these points ensuring the conformity to minimum required accuracy standards and specifications. Once field survey reports are received, NSA will respond to the request within 10 working days.
11. NSA will verify the survey data forwarded for approval taking into consideration that these data have limited errors. If these errors exceed the acceptable limit (1% of whole survey work), data will be returned unapproved to the sender.
12. The field survey team will evaluate the received survey works and independently carry out necessary computations. All survey work related data (observations, survey monuments descriptions, levelling, reports ... etc) must be submitted to NSA. The supplier shall process and edit the data using their available software conform to those used in NSA.
13. NSA will approve the horizontal survey works in accordance with the most updated Global Positioning System (GPS) or the conventional land survey measurements edited according to ONGD. 14. NSA shall only accept the survey works that conform to the Global Navigation Satellite System (GNSS) and edited using the most recent national geoid model. When new results of any geoid model are published, NSA will give a time limit for the old model-based survey works.