DRAFT UGANDA STANDARD  
  DUS 775 -2 
Second  Edition  
2023 -September -
dd 
 
 
 Reference number  
US 775 -2: 2023  
© UNBS yyyy   
  
Retro -reflective registration plates for motor vehicles — 
Specification — Part 2: Registration plates  
 US 775-2: 2023  
ii © UNBS yyyy  – All rights reserved  
 Compliance with this standard does not, of itself confer immunity from legal obligations  
A Uganda Standard (US) does not purport to include all necessa ry provisions of a contract. Users 
are responsible for its correct application  
© UNBS 2023   
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilised in any 
form or by any means, electronic or mechanical, in cluding photocopying and microfilm, without prior written 
permission from UNBS.  
Requests for permission to reproduce this document should be addressed to  
The Executive Director  
Uganda National Bureau of Standards  
P.O. Box 6329  
Kampala  
Uganda  
Tel: +256 41 4 333 2 50/1/2/3  
Fax: +256 41 4 286 123  
E-mail: info@unbs.go.ug  
Web: www.unbs.go.ug  US nnnn -n:yyyy  
© UNBS yyyy  – All rights reserved  iii 
 Contents  Page 
Foreword  ................................ ................................ ................................ ................................ .............................  v 
1 Scope  ................................ ................................ ................................ ................................ ......................  1 
2 Normative references  ................................ ................................ ................................ ............................  1 
3 Terms and definitions  ................................ ................................ ................................ ...........................  1 
4. Requirements  ................................ ................................ ................................ ................................ .........  2 
4.1. Materials  ................................ ................................ ................................ ................................ .................  2 
4.1.1.  Aluminium  ................................ ................................ ................................ ................................ ..............  2 
4.1.2.  Retro -reflective material  ................................ ................................ ................................ .......................  2 
4.1.3  Hot stamp foil  ................................ ................................ ................................ ................................ .........  4 
4.1.4  Optical variable s ecurity hologram  ................................ ................................ ................................ ..... 4 
4.2 Shape and dimensions  ................................ ................................ ................................ .........................  4 
4.3 License number, border and graphic  ................................ ................................ ................................ .. 4 
4.3.1  General  ................................ ................................ ................................ ................................ ...................  4 
4.3.2  Colour and luminance factor  ................................ ................................ ................................ ................  5 
4.3.3  Form and dimensions of characters of licence nu mbers  ................................ ................................ . 5 
4.3.4 Permutation range  ................................ ................................ ................................ ................................ ..... 6 
4.3.5  Graphics  ................................ ................................ ................................ ................................ .................  6 
4.3.6  Workman ship and installation  ................................ ................................ ................................ .............  6 
4.4 Digital identification  ................................ ................................ ................................ ..............................  6 
4.4 Luminance factor ratio of character to background colours  ................................ ............................  6 
4.5 Performance  ................................ ................................ ................................ ................................ ...........  7 
4.5.1  Resistance to weathering  ................................ ................................ ................................ .....................  7 
4.5.2  Resistance to impa ct................................ ................................ ................................ .............................  7 
4.5.3  Resistance to abrasion  ................................ ................................ ................................ .........................  7 
4.5.4  Resistance to scratching  ................................ ................................ ................................ ......................  7 
5 Inspection and methods of test  ................................ ................................ ................................ ...........  7 
5.1 Inspection  ................................ ................................ ................................ ................................ ...............  7 
5.2 Test specimens  ................................ ................................ ................................ ................................ ...... 7 
5.3 Colour and luminance factor test (white and yellow)  ................................ ................................ ........  8 
5.3.1  Chromaticity co -ordinates and luminance factors  ................................ ................................ ............  8 
5.3.2  Graphics  ................................ ................................ ................................ ................................ .................  8 
5.4 Photometric test  ................................ ................................ ................................ ................................ .... 8 
5.4.1  Test specimens  ................................ ................................ ................................ ................................ ...... 8 
5.4.2 Method  ................................ ................................ ................................ ................................ ....................  8 
5.5 Resistance to weathering  ................................ ................................ ................................ .....................  8 
5.6 Resistance to impact ................................ ................................ ................................ .............................  8 
5.6.1  Apparatus  ................................ ................................ ................................ ................................ ...............  8 
5.6.2  Procedure  ................................ ................................ ................................ ................................ ...............  8 
5.7 Resistance to abrasion  ................................ ................................ ................................ .........................  9 
5.7.1  Apparatus and reagents  ................................ ................................ ................................ .......................  9 
5.7.2  Procedure  ................................ ................................ ................................ ................................ ...............  9 
5.8 Resistance to scratching  ................................ ................................ ................................ ....................  10 
5.8.1  Apparatus  ................................ ................................ ................................ ................................ .............  10 
5.8.2  Procedure  ................................ ................................ ................................ ................................ .............  10 
6 Packing  ................................ ................................ ................................ ................................ .................  10 
7 Marking  ................................ ................................ ................................ ................................ .................  10 
Annex  A (normative)  Annex title  ................................ ................................ ................................ ....................  11 
Bibliography  ................................ ................................ ................................ ................................ ......................  66 US 775-2: 2023  
iv © UNBS yyyy  – All rights reserved  
  US nnnn -n:yyyy  
© UNBS yyyy  – All rights reserved  v 
 Foreword  
Uganda N ational Bureau of Standards (UNBS) is a parastatal under the Ministry of Trade , Industry and 
Cooperatives established under Cap 327 , of the Laws of Uganda , as amended .  UNBS is mandated to co -
ordinate the elaboration of standards and is  
(a) a member of Intern ational Organisation for Standardisation (ISO) and  
(b) a contact point for the WHO/FAO Codex Alimentarius Commission on Food Standards, and  
(c) the National Enquiry Point on TBT  Agreement  of the World Trade Organisation (WTO).  
The work of preparing Uganda Standa rds is carried out through Technical Committees. A Technical 
Committee is established to deliberate on standards in a given field or area and consists of key stakeholders 
including government, academia, consumer groups, private sector and other interested parties.  
Draft Uganda Standards adopted by the Technical Committee are widely circulated to stakeholders and the 
general public for comments. The committee reviews the comments before recommending the draft standards 
for approval and declaration as Uganda  Standards by the National Standards Council.  
The committee responsible for this document is Technical Committee UNBS /TC 117, Transport Vessels and 
Accessories . 
This second  edition cancels and replaces the first edition ( US 775-2:2008 ), which has been tech nically 
revised.  
US 775 consists of the following parts, under the general title Retro -reflective registration plates for motor 
vehicles — Specification :  
  Part 1: Blanks (Metallic )  
  Part 2: Registration plate   US 775-2: 2023  
vi © UNBS yyyy  – All rights reserved  
 UGANDA STANDARD  US nnnn -n: yyyy  
 
© UNBS 2023 – All rights reserved  1 
 Retro -reflective registration plates fo r motor vehicles — 
Specification — Part 2: Registration plates  
1 Scope  
This Uganda Standard (US) specifies requirements for registration plates that are intended for use on motor 
vehicles (including motor cycles, tricycles, and quadricycles), engineering plant s, and trailers . 
2 Normative references  
The following referenced documents referred to in the text in such a way that some or all of their content 
constitutes requirements of this document. For dated references, only the edition cited applies. For und ated 
references, the latest edition of the referenced document (including any amendments) applies.  
ASTM G 154 , Standard practice for operating fluorescent light apparatus for UV exposure of non -metallic 
materials  
 
ISO 7591  Road vehicles — Retro -reflective registration plates for motor vehicles and trailers — Specification  
 
Traffic and Road Safety Act, 1998  
 
3 Terms and definitions   
For the purposes of this document, the followi ng terms and definitions apply.  
ISO and IEC maintain terminological databases for  use in standardization at the following addresses:  
— ISO Online browsing platform: available at http://www.iso.org/obp  
3.1  
blank  
plate of a size specified in 4.2, that has on one side an embossed border with retro -reflective material covering 
the face,  for use in the manufacture of a registration plate.  
3.2  
embossing  
process by which a character or a set of characters is applied to a plate in relief, on the retro -reflective surface 
side of a registration  plate  
3.3  
illuminant  
illuminant D65 as def ined by the International Commission on Illumination  
3.4  
hot stamping foil  
foil, which is used for colouring of embossed portion of the registration plate   
2 © UNBS yyyy – All rights reserved  
 3.5 
licence number  
non-self-radiating letters and numerals either in combination or as prescribe d by the relevant national 
regulations  
3.6 
luminance factor  
ratio of the luminance of the material to that of a perfect reflecting diffuser identically illuminated  
3.7 
optical variable device (OVD)  
device which allows easy verification and derivative of holographic security features with the naked eye  
3.8 
Registration plate  
plate that displays the licence number of a motor vehicle or trailer or engineering plant  
3.9 
retro -reflection  
reflection in which light is reflected in directions close to the direc tion of incidence, irrespective of the angle of 
incidence at the reflecting surface  
3.10 
retro -reflective sheeting  
a multi -layer film with small retro -reflective elements very near the exposed surface.  
3. 11  
Alpha – Numeric characters  
constitutes letter s of alphabet from A – Z in upper case and arabic numerals from 0 – 9 
3. 12  
Licensing Authority  
the Ministry of Works and Transport  
4. Requirements  
4.1. Materials  
4.1.1.  Aluminium  
4.1.1.1  A blank shall be manufactured from aluminium with minimum thickne ss of 1.0 mm ± 0.1 mm.  
4.1.1.2  A blank constitutes the total combination of all the materials necessary t o produce a registration plate.  
4.1.1.3  A blank shall be free of protruding material detrimental to the proper funct ioning of a registration plate.  
4.1.1.4 The mechanical properties shall allow embossing and shall have a tensile strength of 90 N/mm2 to 
115 N/mm2 a nd a minimum elongation of 6 %.  
4.1.2.  Retro -reflective material  
4.1.2.1  The colour of the retro -reflective material for registration plates sh all be yell ow, white, blue, red or 
green.  
4.1.2.2  The retro -reflective material shall be such that, when it is applied to an aluminium substrate, the 
colour, luminance factor and coefficients of retro -reflection comply with the relevant requirements of 4.1 .2.3 
and 4.1.2.4  US 775-2: 2023  
© UNBS yyyy – All rights reserved  3 
 4.1.2.3  The plate shall have the whole of its front surface covered with retro -reflective sheeting suitable 
for embossing. The sheeting shall be applied to form a durable bond with the aluminium metal substrate and 
shall form the backgrou nd surface of the registration plate  
4.1.2.4.  The retro -reflective surface shall be flat, smooth without cracks and shall exhibit uniformity of 
retro-reflection over its entire surface. The retro -reflective sheeting shall bear a mark that identifies the 
manufacturer of the material.  
4.1.2.5.  The optical properties of the retro -reflective material sha ll be as specified in ISO 7591.  
4.1.2.6.  The Uganda flag shall be hot stamped with excellent durability concerning abrasion and UV -
resistance and shall be 50 m m x 30 mm in dimension.  
4.1.2.2.  Colour and luminance factor  
4.1.2.2.1  When determined in accordance with 5.3, the colour of the retro -reflective material, without 
graphics, shall be yellow or white and the chromaticity co -ordinates shall be within the ar ea on a chromaticity 
diagram defined by the lines joining the points of the appro priate values given in Table 1.  
4.1.2.2.2  The retro -reflective material with graphics shall  be tested as specified in 5.3.  
4.1.2.2.3  When determined in accordance with 5.3, th e luminance factor of the retro -reflective material, 
without graphics, shall be at least the appropriate value given in Table 1.  
Table  1 — Chromaticity co -ordinates and luminance factors  
Coloura Coordinate  Value of coordinate  Luminance 
factor, β 1 2 3 4 
White  x 0,355  0,305  0,285  0,335  
≥ 0,35  
y 0,355  0,305  0,325  0,375  
Blue  x 0,181  0,270  0,230  0,103  ≥ 0,05  
y 0,069  0,220  0,250  0,246  
Red x 0,690  0,570  0,545  0,655  ≥ 0,05  
y 0,310  0,315  0,340  0,345  
Yellow  x 0,545  0,487  0,427  0,465  ≥ 0,17  
y 0,45 4 0,423  0,483  0,534  
Dark green  x 0,200  0,300  0,300  0,200  0,02 ≤ β ≤ 0,10  
y 0,450  0,450  0,550  0,550  
Military green  x 0,300  0,400  0,400  0,300  
 0,05 ≤ β ≤ 0,15  
y 0,400  0,400  0,500  0,500  
Electric green  x 0,220  0,320  0,320  0,220  0,10 ≤ β ≤ 0,20  
y 0,510 0,510  0,610  0,610  
 
4.1.2.3  Coefficients of retro -reflection  
When the coefficients of retro -reflection of the material (with graphics, if provided) are determined in 
accordance with 5.4, they shall be at least the relevant values given in Table 2.   
4 © UNBS yyyy – All rights reserved  
 Table 2 — Coefficients of retro -reflection  
Observation 
angle, degrees  Entrance angle, 
degrees  Coefficient of retro – reflection when 
measured with standard illuminant 
A, cd(/lx.m2) min.  
 
Graphicb  Yellow  White  
0.33a) 
1.5 5a) 
30 35 
1.5 35 
1.5 50 
2.0 
a) The coefficient of retro -reflection at an angle of observation and an entrance 
angle of 0.33° and 5° respectively, shall not exceed 100 cd/(lx.m2) for yellow 
material and 160 cd/(lx.m2) for white material.  
b) The total retro -reflection per unit area of a f ull registration plate including 
graphics without characters.  
Graphics shall be printed on a white retro -reflective material and shall have a 
retro-reflective value as given in Table 2,  
 
4.1.2.4  Markings of retro -reflective material  
When examined in acc ordance with 5.1, the retro -reflective material shall bear a legible and indelible serial 
number.  
4.1.3  Hot stamp foil  
The colour of the hot stamp foil shall be black, red, white, green or blue to ink the embossed legend. The foil 
shall meet the requirem ents as specified in ISO 7591. The inking/colouring of the embossed registration plate 
shall be done via hot stamping.  
4.1.4  Optical variable security hologram   
4.1.4.1  Application of the hologram shall be via hot stamping on to the retro -reflective sheet ing. The location 
and dimensions of the hologram shall be as prescribed in annex A for the respective categories of registration 
plates.  
4.1.4.2  The hologram shall be well designed for long -term exterior use with security features and shall be easy  
to veri fy. 
4.1.4.3  The hologram shall be made of chrome. It shall withstand hard test conditions for registratio n plates 
according to ISO 7591.  
4.2 Shape and dimensions  
When measured in accordance with 5.1, registration plates shall be rectangular, with corners rounded to a 
radius of 12 mm, be free from sharp edges and burrs, and shall be of one of the sizes specified under annex 
A. 
4.3 License number, border and graphic  
4.3.1  General  
When measured in accordance with 5.1, the licence number and the border shall  be raised to a height of not 
more than 1.6 ± 0.3 mm above the retro -reflective background. The registration plate shall have embossed US 775-2: 2023  
© UNBS yyyy – All rights reserved  5 
 digits and embossed letters. The registration plate shall have an embossed border of an inner width of 5 mm ± 
1 mm. 
4.3.2  Colour and luminance factor  
4.3.2.1  Colour  
The colour of the embossed border shall match the colour of the licence number.  
4.3.2.2  Luminance factor  
When the luminance factor of the colours black, blue, red, white or green is determined in accordance w ith 
5.3, it shall be as specified in Table 1 . 
4.3.3  Form and dimensions of characters of licence numbers  
4.3.3.1 Form of characters of licence numbers  
Form of characters of licence numbers shall be as prescribed in the figure 1 below.  
  
6 © UNBS yyyy – All rights reserved  
 Figure 1: Form of  characters of licence numbers  
 
4.3.3.2 Dimensions of characters of licence numbers  
4.3.3.2.1 The dimensions and location of characters of licence numbers shall be as prescribed in the drawings 
under annex A for respective registration plates.  
4.3.3.2.2 A hot stamping silver film shall be applied on the surface of all Alpha -Numer ic characters of the 
licence number bearing the inscription ‘ UGA ’  
4.3.4 Permutation range  
The license numbers on registration plates shall not exceed nine (09) Alpha -numeric chara cters.  
4.3.5  Graphics  
When examined in accordance with 5.1, graphics shall be of not more than ten colours per registration plate, 
and shall not negatively affect the legibility of the licence number or be of such a design as to be mistaken for 
a letter o r numeral . 
4.3.6  Workmanship and installation  
4.3.6.1  When examined in accordance with 5.1, the retro -reflective material, licence number and border 
of a plate shall be free of creases, chips, blis ters, discolouration and spots.  
4.3.6.2  The licence number  shall be clearly defined.  
4.3.6.3  A plate shall be of such flatness that, when it is laid (with the licence number upwards) on a flat 
surface, no part, except raised characters or a border, is m ore than 3 mm from the surface.  
4.3.6.4  The plates shall be provided with locking mechanism, which is self -destructive on removal to 
prevent illegal removal/replacement of plates on vehicles . 
4.4 Digital identification  
The registration plates shall be embedded with a sensor/chip to enable their identification and tracking by 
relevant authorities. The sensor/chip shall be able to store vital vehicle data as shall be prescribed by the 
regulations.  
The position and dimensions of the sensor shall be as prescribed in annex A for respective categories of 
registration pla tes. 
4.5 Colour strip  
4.5.1  Every registration plate shall bear on the left hand side a colour strip as specified in the drawings 
under annex A.  
4.5.2  The colour strip shall contain; the Uganda Flag, QR code, the chip, and the notation Uganda EAU 
(where E AU means East Africa Uganda) . 
4.6 Luminance factor ratio of character to background colours  
When determined in accordance with 5.3, the ratio of the luminance factor values between the character 
colour and the adjacent retro -reflective background and, if applicable, between the character colour and 
adjacent graphic background colo ur, shall not be less than 5:1.  US 775-2: 2023  
© UNBS yyyy – All rights reserved  7 
 4.7 Performance  
4.7.1 Resistance to weathering  
When  tested in accordance with 5.5,  
a) the chromaticity co -ordinates shall remain within the area on the appropriate chromaticity diagram as  
 given in Table 1;  
b) the coefficient of retro -reflection at an angle of observation and an entrance angle of 0.33° and 5°  
 respectively, shall be at least 80 % of the minimum values given in Table 2;  
c) the r etro-reflective material and the licence number or border shall show no sign of cracking, blistering or 
loss of adhesion that would affect the functionality of the plate when viewed from a distance of 
approximately 250 mm under a standard light source, pro viding 400 lx; and  
d) the coated character and border surface shall show no sign of chalking or cracking that would affect the 
functionality of the plate.  
4.7.2 Resistance to impact  
When tested in accordance with 5.6, and where applicable, the retro -reflective material, character, border, the 
coated surface of the character and border, and the base material, shall show no cracking or separation from 
the substrate outside a distance of 5 mm from the impacted area.  
4.7.3 Resistance to abrasion  
When teste d in accordance with 5.7, and, when applicable, when viewed from a distance of approximately 
250 mm under a standard light source (providing 400 lx), there shall be no sign of penetration through the 
coating on the surfaces of the characters to the substra te that would affect the functionality of the plate.  
4.7.4 Resistance to scratching  
When tested in accordance with 5.8, the scratch  
a) produced on the retro -reflective surface shall not have penetrated the material surface, and  
b) produced on the coate d surface of the characters and border, shall be free from jagged edges and where 
applicable shall not have penetrated through to the reflective material.  
5 Inspection and methods of test  
5.1 Inspection  
Visually examine and then measure each plate in the  sample for compliance with all the relevant requirements 
for which tests to assess compliance is not given in 5.3 to 5.8 (inclusive).  
5.2 Test specimens  
From the sample registration plates, prepare the following test specimens:  
a) resistance to weather ing — one complete registration plate;  
b) resistance to impact — one complete registration plate;   
8 © UNBS yyyy – All rights reserved  
 c) resistance to abrasion — one complete registration plate; and  
d) resistance to scratching — one test specimen of width 50 mm and of length 110 mm.  
5.3 Colour and luminance factor test (white and yellow)  
5.3.1  Chromaticity co -ordinates and luminance factors  
Determine the chromaticity co -ordinates and luminance factors of the relevant areas of the specimen by 
means of a spectrophotometer or other equally  suitable colour measuring device, using standard illuminant 
D65 and 45/0 geometry. Check for compliance with 4.1.2.2, 4.3.2.2 and 4.4.  
5.3.2  Graphics  
Select specimens of size 70 mm × 45 mm from those areas of graphics of the plate that might affect the 
legibility of the registration number. Determine the luminance factor by means of a spectrophotometer or other 
equally suitable colour measuring device, using standard illuminant D65 and 45/0 geometry. Check for 
compliance with 4.3.2.2 and 4.4.  
5.4 Photom etric test  
5.4.1  Test specimens  
5.4.1.1  White and yellow plates, test panel of size 120 mm × 150 mm  
5.4.1.2  Plate with graphics, full plate divided transversely into three equal sized sections  
5.4.2  Method  
Determine the coe fficients of retro -reflectio n, using the values of observation angle and entrance angle given 
in Table 2.  
In the case of plates with graphics, calculate the total retro -reflection of the three sections and express as 
cd/(lx.m2). Check for compliance with 4.1.2.3.  
5.5 Resistance to weathering  
Mount the specimen with the test surface facing the lamps, and subject it to artificial weathering using the 
apparatus and method given in ASTM G 154 for 240 h, using a cycle of 4 h UV exposure at 60 °C and then 4 
h condensation exposure at 50 °C. Check for compliance with 4.5.1 after completion of the test.  
5.6 Resistance to impact  
5.6.1  Apparatus  
5.6.1.1  Striker, a steel ball of diameter 25 mm  
5.6.1.2  Base, a solid support base such as concrete or a steel plate of thickness 12.5 mm  
5.6.2  Procedure  
5.6.2.1  So place the specimen on the base that the striker will fall onto a central flat section of the 
specimen.  
5.6.2.2  Raise the striker 2 m above the specimen and allow it to fall.  US 775-2: 2023  
© UNBS yyyy – All rights reserved  9 
 5.6.2.3  Repeat 5.6.2.1 and 5.6.2.2, but with the point of impact being on part of the coated surface of a 
character.  
5.6.2.4  Examine the specimen for compliance with 4.5.2.  
5.7 Resistance to abrasion  
5.7.1  Apparatus and reagents  
5.7.1.1  Washability testing apparatus (see Figure 9), that consists of a brush wi th stiff black buttcut 
Chinese hog bristles securely wired into an aluminium brush block of size approximately 90 mm × 40 mm × 13 
mm. There are 60 holes in the brush block, each of diameter about 4 mm, solidly filled with bristle. The 
abrading surface of t he bristles (which extend 20 mm below the block) is dressed down with sandpaper or, if 
necessary, so levelled on a hotplate that it is as nearly plane as possible.  
The brush is held in a metal frame on which mass pieces are symmetrically loaded to bring t he total mass of 
the brush assembly to 450 g + 5 g  
5.7.1.2  Suitable drawing mechanism that does not exert a vertical force on the brush and enables  the 
brush to be moved back and forth over the specimen under test at a constant speed of 35 oscillations p er 
minute to 40 oscillations per minute (70 strokes to 80 strokes).The length of each stroke is adjusted to 
approximately 330 mm. The apparatus is mounted on a horizontal table that has means for securing the 
specimen under test. A supply of cleaning solut ion is so arranged as to drip onto the specimen, and there is 
suitable means for collecting excess solution and for ensuring that the specimen is at no time completely 
immersed in the cleaning solution. Replace the brush when the bristles have become so wo rn that they extend 
less than 16 mm from the block.  
5.7.1.3  Detergent solution, a mass fraction of 0.5 % solution, in distilled water, of a detergent that has the 
following composition:   
                    mass fraction, %  
Sodium pyrophosphate ........ ............................................................................. 51  
Sodium sulfate, anhydrous................................................................................ 16  
Sodium dodecyl benzene sulfonate, 80 % ......................... ............................... 23  
Sodium metasilicate, soluble............................................................................. 8.  
Sodium carbonate............................................................................................. 1 .5  
5.7.2  Procedure  
5.7.2.1  Immerse the brush bristles to a depth of about 13 mm in water at 25 °C to 30 °C for 30 min.  
Shake the brush vigorously to remove excess water and then soak it for 5 min in the specified detergent 
solution.  
5.7.2.2  Mount the s pecimen [see 5.2(d)] firmly in the washability testing apparatus. So place the wet 
brush on the surface to be tested that its 90 mm dimension is in the direction of motion. Wet the surface of the 
specimen, and start oscillating the brush immediately. Durin g the test, allow additional cleaning solution to drip 
in the path of the brush in sufficient quantities to keep the test surface wet. Run the apparatus for 10 000 
oscillations.  
5.7.2.3  Remove the specimen, wash it immediately with warm water, and examine  the test surface within 
the middle 100 mm of the brush path for compliance with 4.5.3.   
10 © UNBS yyyy – All rights reserved  
 5.8 Resistance to scratching  
5.8.1  Apparatus  
5.8.1.1  Needle and arm: a needle with a hardened steel hemispherical point of diameter 1 mm, fixed 
vertically, point dow nwards, to the end of a counterpoised horizontal arm. The horizontal arm provides for the 
loading of mass pieces above the needle direct, and it may be set in equilibrium on its fulcrum by adjustment 
of the counter -mass before mass pieces are loaded above the needle.  
5.8.1.2  Mass pieces, a set of 30 mass pieces of 50 g each  
5.8.1.3  Base with sliding specimen holder, a sliding specimen holder that moves freely and automatically on 
its base under the loaded needle (which is perpendicular to the specimen hol der)  
5.8.1.4  Electric current supply and ammeter: the needle and specimen holder are connected in series 
with an ammeter and an electric current supply that, when the coated surface of a specimen is penetrated, the 
needle makes electrical contact with the  underlying aluminium, and this penetration is indicated by a flow of 
current through the ammeter.  
5.8.2  Procedure  
5.8.2.1  In the case of a retro -reflective surface, set the horizontal arm in equilibrium, with the electric 
current supply and ammeter in u se. Clamp the specimen [see 5.2(d)] to the specimen holder, with the material 
to be tested facing upwards. Load the needle with 20 mass pieces (that is, to a total mass of 1 000 g) and 
lower the needle carefully onto the material surface while starting to slide the holder.  
Alternatively, so put the end of the needle on a razor blade on the material surface that the needle can slide 
off the sharp edge of the blade onto the surface. Slide the holder at a uniform speed of approximately 30 
mm/s for a distance of about 90 mm.  
5.8.2.2  Examine the edges of the groove under 10 × magnification.  
5.8.2.3  Check for compliance with the relevant requirements of 4.5.4.  
5.8.2.4  Repeat 5.8.2.1 to 5.8.2.3 on two other parts of the material surface.  
5.8.2.5  In the case of  a coated surface, carry out the test as given in 5.8.2.1 to 5.8.2.4, but with the 
electric current supply and ammeter in use.  
6 Packing  
The plates shall be so packed as to ensure that they are not damaged during normal handling, transportation 
and storag e.  
7 Marking  
7.1 No marking other than the registration number, the graphics (when applicable), the marking required in 
terms of 4.1.2.4 and,7.2 and the border shall appear on the front surface of registration plate. The marking 
shall not interfere with the legibility of the registration number.  
7.2 The front surface of the plate shall bear in legible and indelible marking, the serial number of the blank, 
Uganda flag and security hologram.  
7.3 The back surface of the plate shall bear in legible and indel ible marking the trade name or trade mark of 
the manufacturer of the plate  US 775-2: 2023  
© UNBS yyyy – All rights reserved  11 
 Annex  A 
(normative)  
 
Drawing specifications for registration plates of different vehicle 
categories  
1) (a) Front / Alternate Rear registration plate for motor vehicles (Central govern ment)  
 
 
 
 
 
 
 
 
 
  
12 © UNBS yyyy – All rights reserved  
  
1) (b) Rear registration plate for motor vehilces (central government)  
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  13 
  
 
2) (a) Front / Alternate Rear registration plate for motor vehicle (Local Government)  
 
2) (b) Rear registration plate for motor vehicles (Local government)  
  
14 © UNBS yyyy – All rights reserved  
 
 
 
3) (a) Fro nt/Alternate Rear registration plate for motor vehicles (Government parastatal)  
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  15 
  
 
3) (b)  Rear registration plate for motor vehicles (Government parastatal)  
 
  
16 © UNBS yyyy – All rights reserved  
 4) (a) Front / Alternate Rear registration plate for motor vehicles (special purpose government)  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  17 
 4) (b) Rea registration plate for motor vehicles (special purpose government)  
 
 
 
 
  
18 © UNBS yyyy – All rights reserved  
  
 
5) (a) Front / Alternate Rear registration plate for motor vehicles (Uganda Police)  
 
 
 
 
 
 
 
 
 
 
 
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  19 
 5) (b) Rear registration plate for motor vehicles (Uganda Police)  
 
 
 
 
  
20 © UNBS yyyy – All rights reserved  
 6) (a) Front / Alternate Rear registration plate for motor vehicles (Uganda Prisons Service)  
 
 
 
6) (b) Rear  registration plate for motor vehicles (Uganda Prisons Service)  
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  21 
 
 
7) (a) Front/Alternate Rear registration plate for motor vehicles (Headq uaters Defense Forces)  
 
 
 
 
 
  
22 © UNBS yyyy – All rights reserved  
 7) (b) Rear registration plate for motor vehicles (Headquater Defense Forces)  
 
 
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  23 
 8) (a) Front / Alternate Rear registration plate for motor vehicles (Division Defense Forces)  
 
 
 
8) (b) Rear  registration plate for motor vehicles  (Division Defense Forces)  
  
24 © UNBS yyyy – All rights reserved  
 
 
 
 
 
 
9) (a) Front/Alternate Rear registration plate for motor vehicles (Defense Forces Protocol)  
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  25 
 
 
 
9) (b) Rear  registration plate for motor vehicles (Defense Forces Protocol)  
  
26 © UNBS yyyy – All rights reserved  
 
 
 
 
 
 
10) (a) Front / Altrenate Rear registration plate s for motor vehices (Duty free for NGOs and by 
purpose)  
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  27 
 
 
 
10) (b) Rear  registration plates for motor vehices (Duty free for NGOs and by purpose)  
  
28 © UNBS yyyy – All rights reserved  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  29 
 11) (a) Front / Alternate Rear registration plates for motor vehices (International organisati ons)  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
30 © UNBS yyyy – All rights reserved  
  
 
 
11) (b) Rear registration plates for motor vehices (International organisations)  
 
 
12) (a) Front/Alternate Rear registration plates for motor vehices (Dealers)  
 
 
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  31 
 12(b) Rear registration plates for motor vehices (Dealers)  
 
 
 
13) (a) Fron t / Alternate Rear registration  plates for motor vehices (Embassies/Diplomatic status)  
 
 
 
 
 
  
32 © UNBS yyyy – All rights reserved  
 
 
 
14) (b) Rear registration  plates for motor vehices (Embassies/Diplomatic status)  
 
 
 
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  33 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
34 © UNBS yyyy – All rights reserved  
 15) (a) Front / Alternate Rear registration  plates for motor  vehices (United Nations)  
 
 
15(b) Rear registration  plates for motor vehices (UN)  
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  35 
 
 
 
 
16) (a) Front / Alternate Rear registration  plates for motor vehices (Honorary Consuls)  
 
 
 
 
 
 
  
36 © UNBS yyyy – All rights reserved  
 16(b) Rear registration  plates for motor vehices (Honorary Consuls)  
 
 
17) (a) Front / Alternate Rear registration  plates for motor vehices (Personalised)  
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  37 
 17(b) Rear registration  plates for motor vehices (Personalised)  
 
 
 
 
  
38 © UNBS yyyy – All rights reserved  
 18) (a) Front / Alternate Rear registration  plates for motor vehices (Privated/Public)  
 
 
 
18(b) Rear  regis tration  plates for motor vehices (Privated/Public)  
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  39 
 
 
 
 
 
 
 
 
 
TRAILERS CATEGORIES  
1) (b) Alternate Rear registration  plates for trailers (Central government)  
 
  
40 © UNBS yyyy – All rights reserved  
  
1) (b) Rear registration  plates for trailers (Central government)  
 
 
 
 
 
2) (a) Alternate Rear registra tion plates for trailers (Local government)  
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  41 
  
 
2) (b) Rear registration  plates for trailers (Local government)  
 
 
 
 
 
 
 
 
 
 
 
 
  
42 © UNBS yyyy – All rights reserved  
 3) (a)) Rear registration  plates for trailers (Government parastatal)  
 
3) (b) Alternate Rear registration  plates for trailers (Government  parastatal)  
 
 
 
 
 
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  43 
  
 
 
4) (a) Rear registration  plates for trailers (Uganda Police)  
 
 
 
4) (b) Alternate Rear registration  plates for trailers (Uganda Police)  
 
  
44 © UNBS yyyy – All rights reserved  
 5) (a) Rear registration  plates for trailers (Uganda Prison services)  
 
 
5) (b) Alternate Rear registrat ion plates for trailers (Uganda Prison services)  
 
 
 
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  45 
 6) (a) Rear registration  plates for trailers (Duty free for NGOs and by purpose)  
 
 
 
6) (b) Alternate Rear registration  plates for trailers (Duty free for NGOs and by purpose)  
 
 
 
 
 
  
46 © UNBS yyyy – All rights reserved  
 7) (a) Rear registration  plates for trailers (UN)  
 
 
 
7) (b) Alternative Rear registration  plates for trailers (UN)  
 
 
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  47 
 8) (a) Rear registration  plates for trailers (Public/private)  
 
 
 
 
 
8) (b) Alternative Rear registration  plates for trailers (Public/Private)  
 
 
  
48 © UNBS yyyy – All rights reserved  
  
 
 
9) (a) Rear registratio n plates for trailers (International Organisations)  
 
 
 
 
 
 
 
 
 
 
 
 
 
  US 775-2: 2023  
© UNBS yyyy – All rights reserved  49 
 9(b) Alternate Rear registration  plates for trailers (International Organisations)  
 
 
10)  (a) Rear registration  plates for trailers (UPDF)  
 
 
 
 
  
50 © UNBS yyyy – All rights reserved  
 
 
 
11) (b) Alternate Rear registration  plate s for trailers (UPDF)  
 
Headquarter Défense Forces  
 
 
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  51 
  
 
 
 
Division Defense Forces  
 
 
 
 
 
 
 
 
 
  
52 © UNBS yyyy – All rights reserved  
  
 
 
MOTORCYCLE CATEGORIES  
1) Rregistration  plates for motorcycles (Central Government)  
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  53 
 
 
2) Rregistration  plates for motorcycles (Local Government)  
 
 
 
 
 
  
54 © UNBS yyyy – All rights reserved  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  55 
 
3) Rregistration  plates for motorcycles (Uganda Police)  
 
 
 
 
  
56 © UNBS yyyy – All rights reserved  
 
4) Rregistration  plates for motorcycles (Uganda Prisons Services)  
 
 
 
 
 
 
 
 
 
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  57 
 
5) Rregistration  plates for motorcycles (Defense Forces)  
 
 
 
 
 
 
 
 
 
 
 
  
58 © UNBS yyyy – All rights reserved  
 
6) Rengastration  plates for moto rcycles (Duty free for NGOs and by purpose)  
 
 
 
 
 
 
 
 
 
 
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  59 
  
7) Registration plates for motorcycles (international organisations)  
 
  
 
 
 
 
 
 
 
 
 
 
  
60 © UNBS yyyy – All rights reserved  
 8) Registration plates for motorcycles (Parastatals)  
 
  
 
 
 
 
 
 
 
 
 
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  61 
 
9) Registration plates for motorcycles ( Diplomatic S tatus/ Embass y) 
 
 
 
  
 
 
  
62 © UNBS yyyy – All rights reserved  
  
10) Registration plates for motorcycles (Private)  
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  63 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
64 © UNBS yyyy – All rights reserved  
 11) Registration plates for motorcycles (Public)  
 
 
 
 
 US 775-2: 2023  
© UNBS yyyy – All rights reserved  65 
 
 
  
66 © UNBS yyyy – All rights reserved  
 Bibliography  
[1] US 775 -2:2008, Retro -reflective registration plates for motor vehicles — Specification — Part 2: 
Metallic registration number plates  
[2] ISO 7591 Road vehicles — Retro -reflective registration plates for motor vehicles and trailers — 
Specification  
[3] DAR 1375:2021 Vehicle Standards – Vehicle Number Plates – Aluminium  
 US nnnn -n: yyyy  
© UNBS 2023 – All rights reserved  67 
 Certification marking  
Produc ts that conform to Uganda standards may be marked with Uganda National Bureau of Standards 
(UNBS) Certification Mark shown in the figure below.  
The use of the UNBS Certification Mark is governed by the Standards Act, and the Regulations made 
thereunder. T his mark can be used only by those licensed under the certification mark scheme operated by 
the Uganda National Bureau of Standards and in conjunction with the relevant Uganda Standard. The 
presence of this mark on a product or in relation to a product is an assurance that the goods comply with the 
requirements of that standard under a system of supervision, control and testing in accordance with the 
certification mark scheme of the Uganda National Bureau of Standards. UNBS marked products are 
continually c hecked by UNBS for conformity to that standard.  
Further particulars of the terms and conditions of licensing may be obtained from the Director, Uganda 
National Bureau of Standards.  
 
 US nnnn -n: yyyy    
 
ICS nn.nnn.nn  
Price based on nn pages  
© UNBS yyyy– All rights reserved