1.1 This guide covers safety and performance guidelines pertaining to in-ground skatepark facilities built primarily out of concrete and other designed materials. This guide pertains to any concrete materials and other designed materials intended to be used in the performance of the sports including skateboarding, inline skating and BMX biking. Items such as fencing, lighting, and operational structures are not intended to be a part of this guide.
1.2 Tolerance: General Measures, Tolerances, and Conversions8212;General dimensional tolerances for this guide (unless otherwise noted) follow. These tolerances still apply to a dimension even when terms like greater than, less than, minimum, or maximum are used.
| Dimension | Tolerance |
| X in. or ft | ±0.5 in. |
| X.X in. | ±0.05 in. |
| X.XX in. | ±0.005 in. |
1.3 The values stated in inch-pound units are to be regarded as standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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