Handbook 44 – 2022 Amendments/Editorial Changes

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The following table lists the codes, paragraphs, and pages in which the 105th and 106th National Conference on Weights 

and Measures made amendments. In the column headed “Action,” changes are noted as “added,” “amended,” 

“deleted,” or “renumbered.” Each code, section, or paragraph that has been changed will be noted as “Added 2021” 

or “Amended 2021.”

*Specifications and Tolerances (S&T) item numbers designated with “(2020 Item)” appeared on the NCWM S&T 

Committee’s 2020 Agenda; these items were voted on at the 105th NCWM Annual Meeting held in January 2021 and 

ratified at the 106th NCWM Annual Meeting held in July 2021. Items without this designation appeared on the S&T 

Committee’s 2021 Agenda and were voted on at the 106th NCWM Annual Meeting held July 2021.

2021 Amendments

SECTION CODE S&T

ITEM NO. PARAGRAPH ACTION PAGE

2.20. Scales SCL-20.10

(2020 Item)*

S.1.2.2.2.

S.1.2.2.3.

Deleted and 

renumbered 

subsequent 

paragraph from 

S.1.2.2.4. to 

S.1.2.2.2.

2-9

SCL-17.1 S.1.8.5. The last two 

paragraphs were 

moved from the 

footnotes to 

paragraph text 

after (e) in the 

body of the 

paragraph with 

concurrence of 

the NCWM S&T 

Committee.

2-13

SCL-20.12 S.1.14., S.3.4. Added 2-14, 2-18

Table S.6.3.a. Amended 2-23 to 2-24

Table S.6.3.b. 

Note 25, Table 

S.6.3.b. Note 26, 

Table S.6.3.b. 

Note 27

Added 2-26

SCL-20.13

(2020 Item)*

N.1.5. Amended 2-32

SCL-20.12 N.7., N.7.1., 

N.7.2., N.7.3., 

N.7.4., N.7.5.

Added 2-38

Table 7a. Amended 2-50
Amendments/Editorial Changes Handbook 44 – 2022

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SCL-19.2

(2020 Item)*

UR.5. Amended and 

formatted into 

subparagraphs 

(a) and (b)

2-58

SCL-20.12 UR.3.13. Added 2-58

3.30. Liquid-Measuring 

Devices 

LMD-20.2

(2020 Item)*

S.1.6.10. Amended 3-12

LMD-19.1

(2020 Item)*

UR.4.2. Added 3-26

3.32. LPG and 

Anhydrous 

Ammonia LiquidMeasuring Devices 

LPG-20.1

(2020 Item)*

S.2.5. Amended and 

renumbered to 

include S.2.5.1. 

and S.2.5.2.

3-54

S.2.6. Renumbered

existing S.2.6. to 

S.2.5.2.

3-54

S.2.6., S.2.6.1., 

and S.2.6.2.

Added new 

S.2.6. with 

content on 

timeout from 

original S.2.5. 

Zero-Set-Back 

Interlock

3-54

3.36. Water Meters WTR-20.2

(2020 Item)*

S.1.1.4. Amended 3-99

WTR-20.1

(2020 Item)*

S.3.2. Added 3-103

3.37. Mass Flow Meters MFM-20.1

(2020 Item)*

S.1.3.3. Amended 3-112

3.40. Electric Vehicle 

Fueling Systems

EVF-21.4 Table S.3.3. Amended 3-162

EVF-19.1

(2020 Item)*

S.5.2. Amended 3-163

EVF-21.6 minimum 

measured 

quantity

Added to 

Tentative Code

3-170

EVF-20.2 submeter Amended 3-171

5.55. Timing Devices TIM-20.1

(2020 Item)*

S.1.1.3. Amended 5-41

5.56.(a) GMA-20.1 Table S.2.5. Amended 5-54
Handbook 44 – 2022 Amendments/Editorial Changes

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Grain Moisture 

Meters

(2020 Item)* S.2.5.1. Added 5-55

5.58. Multiple 

Dimension 

Measuring Devices 

MDM-20.1

(2020 Item)*

S.1.3., Table 

S.1.6., S.1.7., 

S.1.8., S.2., 

S.2.2., S.2.2.1.

Amended 5-84, 5-85, 5-85, 

5-85, 5-87, 5-87,

5-87

S.2.2.2. and 

Acceptable 

Example Tables

Deleted 5-87

Appendix 

A

Fundamental 

Considerations

OTH-21.1 Section 2.1 

Acceptance and 

Maintenance 

Tolerances

Amended A-4

Appendix 

D

Definitions SCL.20.12 data acquisition 

time

Added D-10

MDM-20.1

(2020 Item)*

dimensional 

offset

Added D-11

SCL 19.2

(2020 Item)*

point-based 

railroad 

weighing 

systems

Added D-22

SCL.20.12 reference vehicle Added D-24

vehicle scale Amended D-29

weigh-in-motion 

(WIM) vehicle 

scale

Added D-30
Amendments/Editorial Changes Handbook 44 – 2022

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This publication is available free of charge from: https://doi.org/10.6028/NIST.HB.44-2022

2021 Editorial Changes

SECTION CODE PARAGRAPH ACTION PAGE

3.40. Electric Vehicle 

Fueling Systems

N.2. Separate “maybe” into “may” and 

“be”.

3-164

Appendix C General Tables of 

Units of 

Measurement

In the second table

under the section titled 

“Units of Capacity or 

Volume - Dry Volume 

Measure”

Correct the equivalent for dry pint 

in cubic inches from the 

erroneous value listed of “1.12 

cubic inches” to the correct value 

of “33.600 312 5 cubic inches.”

C-13