EFD, or they may be transferred to the station commanding officer in a current status by such commands.

PROJECT DRAWINGS PREPARATION

All Naval Facilities Engineering Command (NAVFACENGCOM) project drawings are prepared according to DoD-STD-100. The policy and procedures for preparing and developing these drawings are outlined in the Military Handbook, MIL-HDBK 1006/1. Project drawings must be complete, accurate, and explicit since they (together with the design specifications) form the basic ingredients used in contracts for the construction of naval facilities.

POLICY AND STANDARDS

The design criteria for project drawings are set by NAVFACENGCOM. These criteria also applv to definitive designs and standard drawings and to project specifications. EFDs and A&Es are allowed latitude in new concepts, creative thinking, and the use of new materials; however, when deviations from mandatory criteria are considered, EFD and A&E need to obtain prior clearance from NAVFACENGCOM headquarters.

For dimensions on project drawings, you may use customary U.S. dimensions unless the project is in an area in which System International (S1) is normally used. The International System of Units is the international y accepted "metric" system. For details of the proper use of S1 units, see appendix I. Refer to ASTM E380-82, Standard for Metric Practice, for generic conversions and ASTM E621-79, Recommended Practice for the Use of Metric (SI) Units in Building Design and Construction, for conversions in engineering and design.

ORDER OF DRAWINGS Project drawings for buildings and structures are arranged in the following order:

1. TITLE SHEET and INDEX - Contains specific project title and an index of drawings. (Used only for projects containing 60 or more drawings).

2. SITE or PLOT PLANS - Contains either site or plot plans or both, as well as civil and utility plans. For small projects, this sheet should include an index of the drawings.

3.LANDSCAPE and IRRIGATION - (if applicable).

4. ARCHITECTURAL - (including interior design as applicable).

5. STRUCTURAL.

6. MECHANICAL - (heating. ventilation. and air conditioning).

7. PLUMBING.

8. ELECTRICAL.

9. FIRE PROTECTION.

DRAWING SHEET SIZES

Standard drawing sheet sizes are used to facilitate readability, reproduction, handling, and uniform filing. Blueprints, produced from standard-size drawing sheets, are easily assembled insets for project stick files. The NCF uses two format sizes. These are flat and roll sizes according to ANSI Y14.1, and they are approved for use by DoD-STD 100. Flat size refers to drawings that are relatively small in size and should be stored or filed flat. Roll size refers to drawings that are filed in rolls due to their length.

TYPE - SIZE (IN INCHES)

Flat - 17 x 22 (C size) - when small sheets are required

Flat - 22 x 34 (D size) - for project and other drawings

Flat - 28 x 40 (F size) - option to 22 x 34

TITLE BLOCK

The title block identifies each sheet in a set of drawings (fig. 2-1 ). Generally, the title block is located at the bottom right corner of the drawing, regardless of the size of the drawing (except for vertical title block). For further information on the layout of title blocks, refer to the Military Handbook, MIL-HDBK 1006/1, or the Engineering Aid Basic, NAVEDTRA 12535.

The information provided in the title block is very important information that you, the Builder, MUST understand. In addition to the size of the drawing,