363 NLRB 406
Laborers' International Union of North America Local 110 (U.S. Silica Company)
406
DECISIONS OF THE NATIONAL LABOR RELATIONS BOARD
363 NLRB No. 42
Laborers’ International Union of North America Lo-
cal 110 and U.S. Silica Company and Interna-
tional Union of Operating Engineers, AFL–CIO,
Local 513. Case 14–CD–153807
November 24, 2015
DECISION AND DETERMINATION OF DISPUTE
BY CHAIRMAN PEARCE AND MEMBERS HIROZAWA
AND MCFERRAN
This is a jurisdictional dispute proceeding under Sec-
tion 10(k) of the National Labor Relations Act (the Act).
U.S. Silica Company (the Employer) filed a charge on
June 9, 2015,1 alleging that Laborers’ International Un-
ion of North America Local 110 (Laborers) violated Sec-
tion 8(b)(4)(D) of the Act by threatening to engage in
proscribed activity with an object of forcing the Employ-
er to assign certain work to employees represented by
Laborers rather than to employees represented by Inter-
national Union of Operating Engineers, AFL–CIO, Local
513 (Operating Engineers). A hearing was held on June
30 before hearing officer Krista L. Lopez. Thereafter,
the Employer and Laborers filed posthearing briefs. Op-
erating Engineers also filed a motion to quash the Sec-
tion 10(k) notice of hearing and a posthearing brief in
support of its motion.
The National Labor Relations Board has delegated its
authority in this proceeding to a three-member panel.
The Board affirms the hearing officer’s rulings, find-
ing them free from prejudicial error. On the entire rec-
ord, the Board makes the following findings.
I. JURISDICTION
The Employer, a Delaware corporation, operates a sili-
ca mine and processing plant in Pacific, Missouri, where
it produces industrial mineral materials. The parties
stipulated that during the 12-month period prior to the
hearing, the Employer purchased and received goods
valued in excess of $50,000 directly from points outside
the State of Missouri. The parties further stipulated that
the Employer is an employer within the meaning of Sec-
tion 2(2) of the Act, and we find that it is engaged in
commerce within the meaning of Section 2(6) and (7) of
the Act. The parties additionally stipulated, and we find,
that Laborers and Operating Engineers are labor organi-
zations within the meaning of Section 2(5) of the Act.
II. THE DISPUTE
A. Background and Facts of the Dispute
At the Pacific, Missouri silica mine and plant, the Em-
ployer employs 4 employees represented by Operating
Engineers and approximately 36 employees represented
1 All dates are 2015 unless otherwise specified.
by Laborers. The Employer has recognized those labor
organizations as the exclusive representatives of the em-
ployees for several decades.
The Pacific operation spans 530 acres. Employees
represented by Operating Engineers work at the northern
end of the property, near the mine. Using heavy equip-
ment, the Operating Engineers-represented employees
shovel blasted sandstone into a pipeline that transmits the
raw product to the processing plant at the southern end of
the property, 1.5 to 2 miles away. At the processing
plant, the sandstone is processed to customers’ specifica-
tions and loaded onto trucks and rail cars for shipment.
At the processing plant, Union Pacific Railroad deliv-
ers empty rail cars and retrieves filled cars for transport
of the processed sandstone. This occurs approximately 6
days a week, and employees represented by Laborers
spend a significant amount of their work time loading
and unloading rail cars. In addition, Laborers-
represented employees perform maintenance tasks in the
processing plant and, 1–3 times a week, load materials
onto trucks to be loaded onto barges.
Sand loaders, who are represented by Laborers, are
tasked primarily with loading the processed sandstone
onto rail cars and trucks. This work historically consist-
ed of positioning the rail cars and trucks, loading the
sandstone, and—in the case of rail cars—transporting the
rail cars across the highway for storage. Prior to March,
sand loaders moved and filled rail cars via a “gravity
drop” method. Sand loaders coupled the rail cars and
then, using the cars’ hand brakes, maneuvered the cars
down a small gradient and positioned them under loading
silos. The sand loaders then released and reapplied the
hand brakes to properly position the cars, loaded and
weighed the cars, and then released the hand brakes to
allow the cars to move downward to be lined up for
transport by Union Pacific. Following transport, the
railroad would return empty rail cars and place them at
the top of the gradient for refilling.
The Employer determined that the gravity drop proce-
dure was undesirable and unsafe. Consequently, in
March, the Employer purchased a piece of equipment
called a Track Mobile for use in positioning and moving
the rail cars. The Track Mobile operates like a small
railway locomotive that can move both on roads and on
railway ties and is used to push or pull rail cars into posi-
tion. Thus, instead of relying solely on a hand brake to
stop and start the rail cars, the Track Mobile drives up to
the storage area, couples with the rail cars, and then
moves them down the hill to the filling silos. Once
filled, the Track Mobile moves the rail cars to the hold-
ing area.
LABORERS LOCAL 110 (U.S. SILICA) 407
When Operating Engineers learned that the Employer
was purchasing the Track Mobile, it met with the Em-
ployer to discuss its operation. After the Employer in-
formed Operating Engineers that sand loaders would be
trained to operate the new equipment, Operating Engi-
neers filed a grievance on March 30, stating that the Em-
ployer violated its collective-bargaining agreement by
assigning the Track Mobile work to employees outside
the unit. The grievance further stated, “[Operating Engi-
neers] demands that this work be performed by the bar-
gaining unit members pursuant to the collective bargain-
ing agreement.”
In April, the Employer began training about 15 sand
loaders in the Laborers’ bargaining unit to operate the
Track Mobile. This included training from the railroad,
the manufacturer, and the Employer’s on-site safety co-
ordinator to ensure that employees knew how to safely
operate the equipment. Since acquiring the Track Mo-
bile, the Employer has assigned its operation exclusively
to the sand loaders.
On May 18, Laborers wrote to the Employer stating it
had learned that Operating Engineers claimed the work
of operating the Track Mobile, including by filing a
grievance and seeking arbitration. The letter stated, “If
the work of operating the track mover is reassigned from
the Local 110 unit to the Local 513 unit, Local 110 will
picket the Employer for the purpose of keeping this work
in our Local 110 bargaining unit.”
On June 2, Operating Engineers sent a letter to the
Employer with the subject heading, “Operating Engi-
neers Local 513—Grievance Regarding Proper Wages
and Benefits Due to Individuals Operating the Track
Mobile,” seeking to clarify the arbitration schedule. On
July 6, after the hearing in this case had concluded, Op-
erating Engineers withdrew its grievance and filed a doc-
ument with the Board disclaiming the work in dispute.
B. Work in Dispute
The notice of hearing describes the disputed work as
“the operation of the Track Mobile at the U.S. Silica
Company facility in Pacific, Missouri.”
C. Contentions of the Parties
Operating Engineers has moved to quash the notice of
hearing, arguing that there is no dispute under Section
8(b)(4)(D) or Section 10(k) of the Act because it is not
attempting to have the work reassigned to employees that
it represents. Rather, Operating Engineers argues that it
seeks to have the terms of its collective-bargaining
agreement apply to the employees currently operating the
Track Mobile. Operating Engineers argues that the sub-
ject line of its June 2 letter (“Grievance Regarding Proper
Wages and Benefits Due to Individual Operating the
Track Mobile”) makes clear that it was only seeking con-
tractual benefits for the individuals operating the Track
Mobile and not reassignment of the work. Operating
Engineers also cites its July 6 Disclaimer of Interest,
wherein it asserts it has withdrawn its grievance concern-
ing the work as evidence that it does not claim the Track
Mobile work.
The Employer and Laborers argue that Operating En-
gineers clearly claimed the Track Mobile work and that it
is properly assigned to employees represented by Labor-
ers. The Employer contends that there is reasonable
cause to believe that Laborers violated Section
8(b)(4)(D) of the Act by its threat to picket if the Track
Mobile work were reassigned. On the merits, the Em-
ployer and Laborers argue that the factors of collective-
bargaining agreements, company preference, past prac-
tice, and economy and efficiency of operations favor an
award of work to employees represented by Laborers.
Laborers additionally argues that the factor of area and
industry practice supports an award of the work to em-
ployees it represents.
D. Applicability of the Statute
The Board may proceed with a determination under
Section 10(k) of the Act only if there is reasonable cause
to believe that Section 8(b)(4)(D) has been violated.
Operating Engineers Local 150 (R&D Thiel), 345 NLRB
1137, 1139 (2005). This standard requires finding that
there is reasonable cause to believe that there are compet-
ing claims for the disputed work between rival groups of
employees and that a party has used proscribed means to
enforce its claim to that work. Additionally, the Board
must also find that the parties have not agreed on a
method of voluntary adjustment of the dispute. Id. On
this record, we find that this standard has been met.
1. Competing claims for work
We find that there are competing claims for the work
in dispute. Both Laborers and the Employer stipulate
that Laborers claimed the work in dispute in this case.
Moreover, employees represented by Laborers have been
performing Track Mobile operation since April. See
Chicago and Northeast Illinois District Council of Car-
penters (Prime Scaffold), 338 NLRB 1104, 1106 (2003)
(finding that a group of employees’ performance of dis-
puted work is sufficient to evidence a claim for that
work); Laborers’ Union Local 310 (Safway Services),
363 NLRB 252, 253 (2015).
Operating Engineers argues that, after the close of the
hearing, it disclaimed the work at issue, served notice of
its intent to withdraw its grievance, and avowed it will
not file a new grievance. The Board generally will grant
a motion to quash where a party has presented a “clear,
DECISIONS OF THE NATIONAL LABOR RELATIONS BOARD
408
unequivocal, and unqualified disclaimer of all interest in
the work in dispute.” Operating Engineers Local 513
(Thomas Industrial Coatings), 345 NLRB 990, 992
(2005) and cases cited therein. However, the Board will
refuse to give effect to “‘hollow disclaimers’ interposed
for the purpose of avoiding an authoritative decision on
the merits.” Laborers Local 81 (Kenny Construction
Co.), 338 NLRB 977, 978 (2003).
As an initial matter, Operating Engineers clearly
sought assignment of the disputed work in its March 30
grievance, stating that “[Operating Engineers] demands
that this work be performed by the bargaining unit mem-
bers pursuant to the collective bargaining agreement.”
Contrary to Operating Engineers’ contention, its June 2
letter entitled “Operating Engineers Local 513—
Grievance Regarding Proper Wages and Benefits Due to
Individuals Operating the Track Mobile” did not clearly
disclaim the work, but rather sought to expedite its griev-
ance to arbitration.
Further, contrary to Operating Engineers’ claim, we
find that its grievance was jurisdictional and not repre-
sentational in nature. That grievance would require any
employee operating the Track Mobile to be covered by
Operating Engineers’ collective-bargaining agreement
with the Employer and subject to that agreement’s union-
security clause requiring Operating Engineers’ member-
ship as a condition of employment. Thus, sand loaders
operating the Track Mobile who are currently represent-
ed by Laborers would be required to become Operating
Engineers members or face discharge. Under these cir-
cumstances, we find that Operating Engineers’ grievance
sought to effectively remove work from employees rep-
resented by Laborers and give it to employees represent-
ed by Operating Engineers. In similar cases, the Board
has rejected the argument that such claims are represen-
tational and found that they amounted to attempts to ac-
quire disputed work. See Laborers Local 79, (DNA
Contracting), 338 NLRB 997, 999 (2003) (dispute juris-
dictional where union sought to perform work under un-
ion-security contract and another union was already per-
forming the work under contract).
Furthermore, it was only on July 6, after the hearing in
this matter closed, that Operating Engineers withdrew its
grievance and disclaimed the work at issue. The Board
has found that such disclaimers proffered at the conclu-
sion of a 10(k) hearing are ineffective. International
Operating Engineers Local 150 (Royal Components),
348 NLRB 1369, 1370 (2006); Electrical Workers IBEW
Local 98 (Lucent Technologies), 324 NLRB 230, 231
(1997).
Finally, notwithstanding its purported disclaimer of the
work, Operating Engineers argues in its post-hearing
brief (filed after it submitted its disclaimer) that employ-
ees operating the Track Mobile are members of Operat-
ing Engineers while they perform that work. Given these
contradictory claims, we cannot find that Operating En-
gineers clearly and unequivocally disclaimed the disput-
ed work. See generally Plumbers Local 562 (Grossman
Contracting), 329 NLRB 516, 520 (1999) (finding no
effective disclaimer where the union argued that it no
longer wished to have its employees perform disputed
work and withdrew its grievances but provided vague
answers at the hearing about the disclaimer and did not
mention the disclaimer in its posthearing brief). Accord-
ingly, we find that there are competing claims for the
work in dispute.
2. Use of proscribed means
We also find reasonable cause to believe that Laborers
used means proscribed under Section 8(b)(4)(D) to en-
force its claim to the disputed work when, in its May 18
letter to the Employer, Laborers’ Business Manager
Wiley informed the Employer that it was claiming the
Track Mobile work for the Laborers bargaining unit em-
ployees and threatened to picket the Employer if the
work were reassigned to the Operating Engineers’ bar-
gaining unit. The Board has long considered this type of
threat to be a proscribed means of enforcing claims to
disputed work. Operating Engineers Local 150 (Patten
Industries), 348 NLRB 672, 674 (2006).
3. No voluntary method for adjustment of the dispute
We also find no agreed-upon method for voluntary ad-
justment of the dispute to which all parties are bound.
The Employers and Laborers agree that there is no vol-
untary adjustment procedure in place between the parties
to resolve the current work dispute. Operating Engineers
would not so stipulate but proffered no evidence or ar-
gument to the contrary.
Based on the foregoing, we find that there are compet-
ing claims for the work in dispute, reasonable cause to
believe that Section 8(b)(4)(D) has been violated, and no
agreed-upon method for the voluntary adjustment of the
dispute. We accordingly find that the dispute is properly
before the Board for determination, and we deny Operat-
ing Engineers’ motion to quash the notice of hearing.
E. Merits of the Dispute
Section 10(k) requires the Board to make an affirma-
tive award of disputed work after considering various
factors. NLRB v. Electrical Workers Local 1212 (Co-
lumbia Broadcasting), 364 U.S. 573, 577–579 (1961).
The Board has held that its determination in a jurisdic-
tional dispute is “an act of judgment based on com-
mon sense and experience,” reached by balancing the
factors involved in a particular case. Machinists Lodge
LABORERS LOCAL 110 (U.S. SILICA) 409
1743 (J.A. Jones Construction), 135 NLRB 1402, 1410–
1411 (1962).
The following factors are relevant in making the de-
termination of dispute.
1. Certifications and collective-bargaining agreements
Laborers asserts that Local 110 has been certified to
represent employees in its bargaining unit. The collec-
tive-bargaining agreement between the Employer and
Laborers includes production and maintenance employ-
ees, including the sand loader position. That agreement
excludes operators of shovels, front end loaders, cranes,
and dozers.
The collective-bargaining agreement between Operat-
ing Engineers and the Employer includes employees who
operate all mobile equipment except for drills and pro-
duction forklifts and excludes all general laborers, crush-
ers, dryer and mill operators, sand loaders, mine helpers,
drillers, sharpener operators, truck operators, supervisory
employees, office workers, and watch men.
Although neither collective-bargaining agreement spe-
cifically includes operation of a Track Mobile, the “all
mobile equipment” language in the Operating Engineers’
agreement arguably would support its claim. By the
same token, the Track Mobile is a device used in per-
forming traditional Laborers’ sand loader work, and is
not among the enumerated equipment excluded by the
Laborers’ agreement.
Considering the evidence, we find that this factor does
not favor an award of the work in dispute to either unit of
employees.
2. Employer preference and past practice
Plant Manager Scott Conroy testified that the Employ-
er has been assigning the operation of the Track Mobile
to employees represented by Laborers and prefers to con-
tinue that assignment. Conroy testified that sand loaders’
primary responsibility has been to move rail cars from
the storage area to the loading area to be filled, and then
downward to be retrieved by the railroad for transport.
Those basic job functions remain the same, with sand
loaders using the Track Mobile to maneuver the rail cars
instead of manipulating the movement of the cars by
using the hand brake method. Conroy testified that hand
brakes and skid plates are still utilized for safety precau-
tions, even with the advent of the Track Mobile, and sand
loaders are well versed in the safety issues and the dan-
gers of moving rail cars around the facility.
Conroy acknowledged that occasionally an employee
represented by Operating Engineers would be called in to
reposition cars using a loader to push the rail cars back
up the hill when they were not properly aligned with the
loading chutes. However, this occurs only rarely.
We find that employer preference and practice favors
an award of the work to employees represented by La-
borers.
3. Area and industry practice
There was little evidence presented at the hearing of
area and industry practice.2 Although the Employer uses
Track Mobiles at six of its other facilities, it does not use
employees represented by either Laborers or Operating
Engineers to operate that equipment. Accordingly, we
find that this factor does not favor an award of the work
in dispute to either employee group.
4. Relative skills and training
When the Employer determined that it would replace
its gravity drop method of moving rail cars with a Track
Mobile, it chose employees represented by Laborers be-
cause sand loaders had generally been tasked with the
loading and movement of rail cars at the production fa-
cility. The Employer then assigned 15 members of the
Laborers to train in the operation of the Track Mobile.
This training included instruction by the manufacturer,
the railroad, and representatives of the Employer on the
operation of the machine and safety. In addition, while
the method of moving the rail cars from gravity drop to
Track Mobile changed, the process of filling the rail cars
remained the same. Thus, sand loaders relied on their
already-existing skills and training to operate the hand
brake (albeit less frequently), position skids under rail
cars for loading, inspect empty rail cars, couple and un-
couple cars, use computerized scales, and negotiate traf-
fic on the highways while the rail cars were moving from
one area of the facility to another.
While employees represented by Operating Engineers
have experience and training in operating pieces of large
mobile equipment, employees represented by Laborers
also have some experience in this type of work. Conroy
testified that employees represented by Laborers utilize
large vehicles to haul materials around the facility as well
as forklifts, pickup trucks, boom trucks, loaders, and wa-
ter trucks. Thus, while employees represented by Oper-
ating Engineers may have greater experience in the oper-
ation of certain types of heavy equipment, generally both
groups of employees are capable of handling large mo-
torized vehicles.
2 Laborers presented testimony about a Dinky Locomotive that was
previously used in the area for moving material cars like flatbeds and
trailers. Laborers testified that employees it represents operated the
Dinky Locomotive to perform functions akin to the Track Mobile. The
limited and generalized testimony presented was insufficient to support
a finding of a past practice favoring Laborers-represented employees.
DECISIONS OF THE NATIONAL LABOR RELATIONS BOARD
410
We therefore find that the factor of relative skills and
training favors an award of the disputed work to employ-
ees represented by Laborers.
5. Economy and efficiency of operations
The Employer presented testimony about the opera-
tions of the mine and production facility. While employ-
ees represented by Laborers work primarily in the pro-
duction facility, employees represented by Operating
Engineers work 1.5 to 2 miles away at the mine itself,
with one of the four unit employees working per shift.
Travel between the mine and the production facility takes
10–15 minutes by truck. If an existing employee repre-
sented by Operating Engineers was assigned to the Track
Mobile, that employee would have to travel back and
forth between the mine and the production facility, re-
sulting in delays (both in the rail car work and at the em-
ployee’s home base). Conroy further testified that it
would not be economical to hire a new employee repre-
sented by Operating Engineers to operate the Track Mo-
bile exclusively because the actual operation of the ma-
chine constitutes a small fraction of employees’ daily
duties. Once the rail cars have been moved into place,
there is no further need to use the Track Mobile, but oth-
er jobs, such as overseeing loading of the cars and per-
forming tasks in the production facility, can be per-
formed by an employee represented by Laborers. Fur-
thermore, 3–4 times a week, sand loaders set aside their
duties loading rail cars to load trucks to ship materials on
barges. During this time, there would be no work for an
employee represented by Operating Engineers to per-
form. Similarly, throughout the day, sand loaders load
other customer trucks. As such, an employee hired to
exclusively operate the Track Mobile would experience
large spans of downtime.
We therefore find that these factors favor an award of
the disputed work to employees represented by Laborers.
See Laborers (Eshbach Bros. LP), 344 NLRB 201, 204
(2005) (finding that the factor of economy and efficiency
of operations favors an award of work to Laborers where
it was shown that they performed other work in addition
to the disputed work).
CONCLUSION
After considering all of the relevant factors, we con-
clude that employees represented by Laborers are entitled
to perform the work in dispute. We reach this conclusion
based on the factors of employer preference and practice,
relative skills and training, and economy and efficiency
of operations. In making this determination, we award
the work to employees represented by Laborers, not to
that labor organization or its members.